Learn 3 Symptoms of Blown Head Gasket

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4 жыл бұрын

How to diagnose a bad (blown) head gasket at home:
1. oil dipstick contaminated with coolant which gives appearance of chocolate milkshake
2. overflow tank mixing with oil which also gives appearance of chocolate milkshake
3. extreme puffs of WHITE smoke coming out of tail pipe and sweet smelling
❗️If you find this video helpful, I would appreciate a $uper Thanks that can be found below the video.
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@Jacklee-qh1cv 3 жыл бұрын

If your car is boiling and you don't have any other symptoms replace the radiator cap. You'd be surprised how many people have had a head gasket replaced and it's just a faulty radiator cap.

@Motorcarnut 3 жыл бұрын

Very true

@Motorcarnut 3 жыл бұрын

@@macgilligan9726 Hi, assuming the scooter is water cooled? That white smoke, if it's alot and doesn't go away, is NOT a cracked exhaust pipe, that has nothing to do with the smoking. It can be one of the 3, cracked head ,cylinder block or head gasket problem. With the head gasket being the most likely cause, unless the person you bought it from ran straight water in the engine and it froze over? The smell of fuel also leads me to believe the head gasket is at fault and leaking causing low compression and unburnt fuel to escape throught the exhaust along with the white smoke. Hope this helps you some.

@Motorcarnut 3 жыл бұрын

@@macgilligan9726 White smoke from an air cooled engine would be considered normal to me, blue smoke would indicate burning rich { carb problem } or burning oil. Without seeing the scooter and how it runs that's my guess.

@londonwatson7342 3 жыл бұрын

Interesting. My car has started to boil which it never does. I let her warm up before I drive, and I don’t punch it so I was like “no it can’t be blown yet” so I’ll check my cap

@JayLupe 3 жыл бұрын

@@macgilligan9726 check your oil level, sometimes if theres too much oil in the engine it throws alot of smoke. 2nd check your carb. 3rd could be your head gasket or engine block.

@MrBrooksV 2 жыл бұрын

Great video! I actually have a 2011 Mazda 3 and today (same color and all) had the head gasket replaced. My mechanic told me about getting it replaced a few weeks back while tuning up and I’m now looking at these problems. I’m swapping cars with my fiancé while I’m away in the military and I’m extremely grateful that I didn’t risk any of these issues. Very insightful and more people need to be aware of this!

@Motorcarnut 2 жыл бұрын

Thank you, glad you enjoyed it.

@amiralihedayati3625 Жыл бұрын

Hey men. Why did you replace your gasket? What was the symptoms?

@Motorcarnut Жыл бұрын

Watch the video

@robertcolebrook7196 3 ай бұрын

You were great.

@TreyKing63 2 жыл бұрын

Nice video! My 2011 Mini Cooper S has symptom #3... a white smoky exhaust when warmed to operating temperature.

@Motorcarnut 2 жыл бұрын

If it doesn’t go away and smells kinda sweet then it’s burning coolant and head gasket or a crack somewhere but probably the gasket is starting to go.

@anitasandall Ай бұрын

Thank you for the clear, helpful and to the point advice; much appreciated.

@Motorcarnut Ай бұрын

Sure, no problem!

@whitdough8150 3 жыл бұрын

Had a dream that I was sitting in a Lamborghini truck with no mi till I woke up to smoke coming from the hood of my van, but the good thing is it didn't overheat - which was strange. Cars are like people the older they get the more one has to maintain them.

@Motorcarnut 3 жыл бұрын

Lol, that's true

@brendan4663 2 жыл бұрын

@Motorcarnut, thanks for the informative video. I've been trying to diagnose my 2013 VW Amarok TDI420. Looks like EGR has been removed/deleted. Coolant expansion tank/system is over-pressurising with a lot of bubbling occurring, smells like exhaust fumes, plus there is a black soot-like deposit on the tank walls. No white smoke out of exhaust. No 'chocolate milkshake' visible yet. No sign of diesel in coolant. Possibly the slightest trace of oil, but very hard to tell & could just be from the exhaust fumes? Already replaced expansion tank cap. I'm thinking this means there is a head gasket crack forcing exhaust gases into the coolant lines, but not big enough to lose coolant into the cylinders, Is there anything else it could be, before I go and ask my mechanic to take a look at the head? Any suggestions really appreciated. Also concerned about driving it to my mechanic, wondering if it's worth a tow? No apparent issues with starting, idle, etc. No temp gauge on the VW Amarok, just coolant warning light, which was flicking on and off the last time I drove it.

@Motorcarnut 2 жыл бұрын

The EGR valve is missing probably because they are known to fail pretty often and there was a recall for that. Could of been the EGR cooler was leaking into the coolant system and pumping it up if they did remove it AND it's still pumpiing up the coolant system then It does sound like the head gasket is going because you shouldn't have soot deposits in the overflow tank at all. And the exhaust flume smell confirms that to me. Best bet is to have a good mechanic check it out who knows VW's. Honestly, being diesels have more compression then gasoline engines, unless the mechanic is within 1 mile or kilometer to drive the truck there I'd have the car towed because chances are the head is probably already damaged but may still be salvageable. Good luck

@Layla-mt9pc Жыл бұрын

Thanks my car ticks the 3 boxes of trouble shooting 👍 brilliant vid after looking at other vids,your number one👍

@Motorcarnut Жыл бұрын

Thank you so much! Really appreciate it!

@goodnewsmusic.5638 2 жыл бұрын

Thank you for the video! Keep up the good work. God bless 🙏🏼

@Motorcarnut 2 жыл бұрын

Thank you!

@jhammond4344 3 жыл бұрын

Awesome thank you!

@Motorcarnut 3 жыл бұрын

You're welcome!

@360whiplash 2 жыл бұрын

I recently found that milky substance under the filler cap and on the dipstick of my car and a few days ago I had the oil changed and used motor flush to clean out the engine. So far the oil has remained clean and normal and the car runs normal and doesn't overheat or emit any white smoke. I assumed it was just condensation due to the winter weather and only making short trips in it, keeping it under 20 miles a week. It does consume a lot of coolant with no leaks in the bottom and it the fluid inside the radiator is dirty and oily despite installing a new radiator six months ago.

@Motorcarnut 2 жыл бұрын

Doesn't sound good. Your head gasket is probably on its way out. Should not consume coolant or have milky substance in the 6 month old radiator. You should have the coolant tested for any exhaust gasses mixed in with. If you do, replacement is the only cure.

@cherict3400 Жыл бұрын

Thank you - very helpful!

@Motorcarnut Жыл бұрын

Glad it was helpful! and thanks for the comment!

@versatile3169 9 ай бұрын

Great explanation. Thank you

@Motorcarnut 9 ай бұрын

Glad it was helpful! You're welcome!

@TurboTitan840hp 2 жыл бұрын

Short and to the point. Thank you

@Motorcarnut 2 жыл бұрын

My pleasure

@Joki-oh7ep Жыл бұрын

If I see coolant on the floor does that mean it HAS NOT got into the engine? Please advise.

@Motorcarnut Жыл бұрын

No, it just means either you have a leak somewhere or the engine is overheating and boiling out on to the floor.

@bellsherly1987 4 ай бұрын

@@Motorcarnut but if the engine is keept on overheating if loong way drive.. is it posssible the head gasket was blown or something?

@diegomelendez9918 3 жыл бұрын

Very helpful video thank you I have that same problem where the coolant is not mixing with the oil......coolant runs low when I drive it and leaks different places below the vehicle...is it cause their is a blockage in the combustion chamber?

@Motorcarnut 3 жыл бұрын

Thank you, well it depends where it’s leaking from underneath the car? Could be a leak in the radiator or hose or pumping up the coolant overflow and leaking down underneath as well. You have to see the location where it’s leaking from first. Good idea to dry everything as best as possible then watch where the leaks are coming from

@thetuesdaywhistler 2 жыл бұрын

Yeah, and, while you're there, with the engine running, but not hot, remove the coolant cap and see if it bubbling/exhaust gases in there - another simple check to see if the head gasket is blown.

@Motorcarnut 2 жыл бұрын

That’s correct.

@robbiestewart1984 9 ай бұрын

Just found your video my rav 4 is currently in the shop as result of what was initially thought to be a blown head gasket but was cleared of milkshake mixture turns out it was the rods that are meant to keep coolant and water sealed in engine with rod 1 & 2 having lost all their tension and were just sitting in the holes The head gasket plate is still in one piece and only very teeny tiny amount of warpage to cylinder so all my mechanic has to do is remove threading from both holes and re-tap them so the bolts fit in there with full tension

@Motorcarnut 9 ай бұрын

You’re talking about the head bolts that became loose? If the engine was taking apart before I’d say it was human error but if the engine was never taken apart than the head gasket did blow. You may of not got oil mixing with coolant but it did overheat hence the warpage.

@robbiestewart1984 9 ай бұрын

@Motorcarnut ah yes the head bolts thanks for correcting me bolts 1 &2 were no longer tensioned when my mechanic check it over

@kevinbeatzeus 2 жыл бұрын

Great video. Stoked that I appear to have escaped the shit realm of this problem. I have a 2004 tacoma 344k and it’s had a terrible leak from the water pump. I switched out the thermostat and housing and it got worse. The car would go from cold to hot very quickly once running. I’m assuming that’s a water pump at this point but I was worried that maybe the head had blown out. And that’s why there wasn’t enough pressure to seal up the system. Having it towed to a mechanic today. Fingers crossed. This is the first problem I’ve really ever had. Great truck. Scared to be told it’s time to move on.

@Motorcarnut 2 жыл бұрын

Just make sure the simple things like the radiator cap and the sealing point where it sits and seals is not distorted. Just replace the cap if in doubt. The radiator is not clogged and flows properly. Another test is when the truck is cold, start it up and see if the top radiator hose gets hard fast before it gets hot, if it does the head gasket is failing and not necessarily you will see that thick white smoke.

@suspicionofdeceit 2 жыл бұрын

I hate being trapped in the shit realm, it’s such a relief escaping.

@timoneil1193 Жыл бұрын

its time to move on

@SMURFEEZ 2 жыл бұрын

Thank you buddy I caught my over heat right after I got off the highway and by my coolant outlet pipe it was hissing nd water or oil on it

@Motorcarnut 2 жыл бұрын

Great, glad to hear you caught it in time!

@wushohnjackmon5179 2 жыл бұрын

Awesome video learned alot just now I have a question. So Ive got a 2003 Hyundai Sonata when I first start the car I gives a weird grinding noise in the engine and lets out alil smoke then stops second or third start up it’s fine like nothing?! Wondering if u could help me out

@Motorcarnut 2 жыл бұрын

What kind of noise and what color is the smoke?

@williamhauser3686 11 ай бұрын

Thank you so much for your help

@Motorcarnut 11 ай бұрын

You are most welcome! Thanks for the feedback!

@gabrielgalaxygh 3 жыл бұрын

Mine starts up really easy has white smoke though no oil on coolant and I just changed oil but didnt seem unusually brown. The bike sat for years so I expected the fluids to be bad

@Motorcarnut 3 жыл бұрын

I'm sorry, but other then what I told you, I don't know what the problem would be without seeing the bike.

@gabrielgalaxygh 3 жыл бұрын

@@Motorcarnut if you have time I can post I video of it

@adzere4u 11 ай бұрын

In your experience what would you say about oil in coolant bottle which is clear like new oil on a 2007 nissan note with no over heating

@Motorcarnut 11 ай бұрын

There is a failure somewhere. Head gasket comes to mind first. Car does not have to overheat for a gasket to fail or you have a crack in the head somewhere.

@ceyfoceyfo3252 2 жыл бұрын

Great video. I got a question I have a 2016 mustang and this car is blowing smoke at idle but then when I start driving it goes away and also I doesn’t always smoke at idle some times it does and sometimes doesn’t now When I does it doesn’t blow as much smoke seen in the video but it does blow enough to note that it is not normal any help would be appreciated. Thank you.

@Motorcarnut 2 жыл бұрын

It’s possible you’re burning coolant. Sounds like when the car is cold, coolant is seeping into the cylinders. Can be a crack somewhere but most likely one of the head gaskets going. Should have the coolant system pressurized and tested for coolant in the cylinders.

@TheLoLzSickKidz 2 жыл бұрын

Sub for 35 years experience. Thank you Sir.

@Motorcarnut 2 жыл бұрын

you're welcome!

@unom5579 2 жыл бұрын

@@Motorcarnut hi. I have a citroen c4 1.4. Car runs ok, but in the coolant tank i see some very minor oil spots. I dont see any bubbling in the coolant tank. Some water drops are going out of the exhaust even with the car warm, i tasted it but doesnt taste like coolant though. If i let the engine warm, if i remove the coolant tank cap, the coolant level rises about 2 fingers. Is it normal? Can a head gasket be burned if there are no bubbling in the coolant tank?

@Motorcarnut 2 жыл бұрын

Everything you explain is normal except oil in the coolant overflow. Could be a head gasket starting to fail, probably why oil is mixing with coolant.

@unom5579 2 жыл бұрын

@@Motorcarnut the engine also has, in corners, at the head gasket location, external oil leaks over the block. I put coolant in the tank up to the neck while the engine running and warm, and i saw some coolant is getting out. Everytime the fan kicks in, coolant drops a bit and i see a big bubble, but only at that time. If i accelerate or something, no bubbles there. I also noticed something, so i wanna ask you. When i first start the car, from inside the car, i hear a quick water bubbling in the dash. I know i heard this only in other 2 cars with head gasket isssues..Did you notice this also? Are there also other ways to detect a failing head gasket? maybe remove the spark plugs and see if one is cleaner? or something? i dont wanna spend alot to replace the head gasket without being necessary.

@Motorcarnut 2 жыл бұрын

When the coolant rises when it’s hot it’s normal and when the fan kicks in it lowers is also normal. Your coolant level should be at the high mark not to the rim in the overflow tank. But you have leaks at the head gasket that is not good. Yes you can take out all the spark plugs and see it any look different from each other. And you can pressurized each cylinder with compressed air and see if any bubbles are coming out through the overflow tank, if there is bubbles than the head gasket is most like bad. The coolant noise inside the car could be a concern but check what I said first.

@gonzalotorres4570 2 жыл бұрын

hey man appreciate the video, i recently had a radiator hose blown and there was water in the entire hood. i replaced it and its all okay but i recently pulled out the oil cap and there was a green residue like coolant so im not sure if my head gasket has blown as well. i cleaned the cap and checked today and there was no residue again, there is no white smoke in the exhaust, the dipstick is fine, coolant level is ok, im just worried about that residue that was in the oil cap and today my low oil pressure light came on for seconds then disappeared, thank you in advance!

@Motorcarnut 2 жыл бұрын

No problem thanks. How long did you drive with the blown hose or how hot did the coolant gauge get before shutting it off? There should not be any coolant in the oil like you know already. A little condensation under the oil cap is normal but not green as that’s coolant.

@gonzalotorres4570 2 жыл бұрын

@@Motorcarnut hey man sorry to bother, my coolant leaks to the floor now, head gasket already replaced, water pump replaced, no hose cracks or reservoir cracks, keeps dropping out from the bottom, a metal Tank any idea where this could come from

@bellsherly1987 4 ай бұрын

@@gonzalotorres4570hey sorry to bother you.. i have same issued like ur car.. but may i knw did you detect already whats the signs problems that may caused?

@tannersnow1729 2 жыл бұрын

Helpful as hell my 2007 Scion tC I believe has a blown head gasket and one of the radiator hoses has more of thick oil with a little water mixed still guessing that’s the same thing

@Motorcarnut 2 жыл бұрын

Yes it is. Thanks for the comment, glad it helped.

@tannersnow1729 2 жыл бұрын

@@Motorcarnut I have a little more questions. If i would be able to email you or talk to you somehow

@mjallen1308 Жыл бұрын

I’ve owned a 2008 Mazda3 (bought 3yrs old with 25K miles on it and I had ZERO issues) and I specifically remember the coolant temp gauge. I rented a 2010 Mazda3 and I didn’t even notice that there was no coolant temp gauge. I also purchased a 2015 Mazda3 and a 2014 Mazda6 and I cannot remember whether or not there was a coolant temp gauge. I guess too bc I purchased the vehicles and they were not that old and had less than 25K miles on them and I always kept my maintenance up - so I guess I didn’t really think there would be an issue. But, for some reason, when I really think back, I think both of them had just the idiot light system where it would say cold or hot. Thought mine never said hot bc I always maintained my cars.

@Motorcarnut Жыл бұрын

Yes 2010 and up, most models had no coolant temp gauge especially in the cheaper vehicles. It's not only the gauge but the wiring, computer controls etc. all to save a penny where they can.

@aieshaharris5340 2 жыл бұрын

I have a car question that I told to the experienced mechanic that works at the car lot that I bought the car from. Well it’s a 2011 Jeep Cherokee and I smell a burning smell from under hood and he said don’t worry it will go away in a few days.. it’s due to a valve cover gasket replacement and they spilled oil. 3 weeks later I still smell it. Also sometimes when I crank up or when my car is idiling , white smoke comes from my tailpipe. It ran just pass the middle of the temperature gauge today but immediately cooled back down. Thanks in advance

@Motorcarnut 2 жыл бұрын

Well the oil burning smell is not normal especially after 3 weeks they probably never replaced it. When I do valve cover gasket’s I clean the area so it doesn’t leak onto the exhaust system anywhere after the repair. A slight sign of white smoke( condensation) is normal when the vehicle is cold however not when fully warmed up and coolant gauge if accurate should not pass the middle unless in extreme conditions like towing or climbing up mountain roads.

@YouceffKabal 2 жыл бұрын

We have a 2005 Jeep Liberty and it’s doing the same thing. White smoke out of exhaust on idle after valve/cylinder head cover gaskets were replaced. I thought it was blowing white smoke because oil was leaking from the valve cover into the exhaust, but now I’m starting to think the head gasket might be to blame. Did you ever find out what was wrong with your Jeep? edit: there’s also smoke in the engine bay…

@anythingrc4715 2 жыл бұрын

@@YouceffKabal what that could mean is a cracked manifold, leaking the white smoke from the bad head gasket into the engine bay.

@biggiefromage3594 2 жыл бұрын

Great video! I have a 2008 BMW 116i and after a fairly long journey my car is violently vibrating and I have a yellow oil light on. There doesn’t seem to be a coolant leak and the oil level hasn’t changed however my Rev limiter is bouncing between 600-750 rpm rapidly. Any suggestions?

@Motorcarnut 2 жыл бұрын

Could be a bad vacuum leak somewhere? Does it have any codes?

@biggiefromage3594 2 жыл бұрын

@@Motorcarnut I am unable to find any codes but the problem isn’t noticeable when driving the car, it is only noticeable when fooling after a long drive if that helps your diagnosis. Furthermore, the radiator runs exceptionally loud.

@Motorcarnut 2 жыл бұрын

Hard to diagnose without being there but sounds like what i said a air leak somewhere, a hose popped off? Fans running a lot could be a head gasket starting to fail , meaning the engine is running hotter than normal but the computer doesn't see that condition yet. Like I said hard to know without the car in front of me and I don't want to steer you in the wrong direction so you may have to have someone look at it for you before it gets worse .

@leviwoodruff4610 2 жыл бұрын

Excellent video. Thank you

@Motorcarnut 2 жыл бұрын

Thanks for taking the time to comment, I really appreciate it!

@adamhernandez1591 3 жыл бұрын

Thank you sir

@Motorcarnut 3 жыл бұрын

Welcome, thanks for watching

@naturesrecovery4516 2 жыл бұрын

Hello, 2002 BMW X5, I do have white smoke from my exaust, on start up then it subcides. I notice last year a creaming color on my oil cap and around the cap fitting, and a little on the oil dip stick. I don't drive to often, short trips because of the age of the car. My father says BMW'S are not short trip cars and you have to drive them long distances sometimes to burn off Condensation, he said thats why I'm getting the thick white smoke, but I don't know, I don't want to take it on the highway and it breaks down on me haha. Blown casket or Condensation? Sorry for the long comment haha. BTW it does smoke while I'm driving also, its like it does it off and on.

@Motorcarnut 2 жыл бұрын

If any vehicle isn't used for a good amount of time it will have some slight milky oil color under the oil filler cap, this is normal also when you first start a cold vehicle there will be white smoke but not thick sweet smelling smoke. So I can't say for sure since I'm not there, I would change oil and filter and flush coolant system then drive it around town get it nice and hot and check your fluid levels and go further and further with it to see if it stops smoking and radiator fans come on and off.

@nonamel6377 2 жыл бұрын

Hey. My 1977 corvette has recently started to have a hiss in the radiator and there is a slight and occasional coolant leak. Took it to a rad specialist, who told me it should be fine for the time being (I'm taking it in in a couple of days to get sorted out). However; the car has developed a clicking or almost knocking sound. Checked the oil, no lack of pressure or milky texture. There isn't any smoke coming from the exhaust, and the car runs and drives well. I'm sure the engine is on its way to overheating, but I'm terrified of a head gasket going out.

@Motorcarnut 2 жыл бұрын

Overheating can cause engine knock if it stays hot enough to cause damage. You should have the car checked by a mechanic before using it anymore

@12wegohard 2 жыл бұрын

Did you figure out what it was ?

@nonamel6377 2 жыл бұрын

@@12wegohard ohyeah, my radiator was leaking. Pulled it out and sent it to a radiator shop, haven't had any issues since (this was half a year ago now lol)

@FlipBoji Жыл бұрын

@@nonamel6377 yo question. How much did that cost you?

@asiaanea4775 Жыл бұрын

@@FlipBoji radiators depending on make & model go for about $400+

@molsen7549 11 ай бұрын

Hi there! Did replacing the head gasket end up fixing this customer's car? If action was taken immediately after noticing white smoke, can you avoid damaging other parts of the car? I have this exact problem and symptom on my mazda 3. Going to flush the coolant and add Irontite with new coolant. Hopefully that acts as a solution for now.

@Motorcarnut 11 ай бұрын

Yes it did and yes you can damage the engine even more than a head gasket such as warping the head or cylinder block and more.

@GFLCB 11 ай бұрын

Makes sense about the coolant now. I was wondering wtf keeps happening to my coolant when I had no leak in the line. And my car is running and idling rough as hell. Man wtf! Smh to my money pit. 🙇

@Motorcarnut 11 ай бұрын

Sorry to hear that, you can take out the spark plugs and see if you see coolant in the cylinders, you’ll know for sure.

@dystopia3300 2 жыл бұрын

I have an rx8 and I noticed a few days ago white smoke started coming from my exhaust on a cold start and my coolant levels are normal no mix on the dip stick and the smoke immediately stops once the car is warmed up. And there has only been one misfire since I noticed the smoke.

@Motorcarnut 2 жыл бұрын

I would keep an eye on it, cold start up with a little white smoke ( condensation) is normal but if the misfire is associated with the burning of coolant that will be a problem. You could get test strips that test the coolant for any signs of exhaust gasses to see if your head gasket is starting to go.

@sonicgarage3025 Жыл бұрын

Rx8s don't have head gaskets

@Motorcarnut Жыл бұрын

Wow, good call, must of forgot about that and was thinking about a conventional Mazda combustion engine, not rotary. Even though they don’t have head gaskets they are still coolant reliant and can leak from various seals and places.

@doncozypodcast.852 2 жыл бұрын

How long should I wait for the smoke to clear after I’ve done an engine overhaul on my car?

@Motorcarnut 2 жыл бұрын

What was wrong with the engine before the repairs?

@peimanfini7823 Жыл бұрын

Thank you 🙏

@Motorcarnut Жыл бұрын

You’re welcome 😊

@dnwar6398 2 жыл бұрын

Been searching the net but haven't found a solution. My car radiator fan keeps cycling on and off for few seconds (5-10 seconds) after coming to a stop from 4 kms and sometimes even cycles on and off when driving. Had replaced the water pump and remove the thermostat. Before the waterpump was leaking but new pump had been install. Any idea on what might be the problem?

@Motorcarnut 2 жыл бұрын

I don’t know what kind of car you have but can be a faulty fan switch, start there if the car is not overheating, it’s probably over cooling. Start with the simple things first

@marybarretta4358 2 жыл бұрын

My mechanic sees the 'milkshake' but not on the diptstick, it's leaking in the engine. He was testing the heating core cause we have no heat. He said the oil was very low and had to add 3 quarts of it (it was changed 3 months ago). Also he pulled out the oil filter and it was saturated with oil. Looked like it had been dipped in oil. He said the place that changed my oil did not change the oil filter which led to the issues that he says may be a damaged head gasket. The car has not overheated.I don't know what to do. Any suggestions?

@Motorcarnut 2 жыл бұрын

If there is mixing of coolant and oil, you probably have a blown head gasket at a minimum. How it happened I can’t tell by your post but either way that’s what it sounds like. Maybe get a second opinion to make sure?

@BigGPoPPa914 2 жыл бұрын

Hey boss, i had my radiator give out which was leaking and overheated the car. I replaced it but noticed the coolant was a cloudy blue instead of blue. I was wondering what you think i should look at next because its idling like its ok so far. Im scared to drive without completely fixing it. Its a 09 maxima

@Motorcarnut 2 жыл бұрын

When the car is hot meaning driving it for about 10 miles or so there should be no smoke. When cold there should only be a light tint of white smoke, never blue, blue is oil burning and not thick white sweet smelling smoke either that’s burning coolant. Does the car overheat now?

@BigGPoPPa914 2 жыл бұрын

@@Motorcarnut hey thanks for the quick reply. At the moment it seems ok .. i got prestone radiator cleaner cycling through with water to clean any thing left out of the system. I also meant the coolant its self was that color. The coolant is usually blue but when i emptied it it was blue with some sludge

@debbiemazzocchi3073 Ай бұрын

😮@@Motorcarnut

@martincampos3722 3 жыл бұрын

My car looses coolant but there’s no leaks, I changed the radiator couple months ago due to coolant leaking, and the coolant sometimes bubbles, could it be the radiator cap I haven’t changed that and the oil looks fine, I do need a oil change soon, what could be the problem?

@Motorcarnut 3 жыл бұрын

Yes, it can very well be the radiator cap with the symptoms you’re describing. Always start with simple things first.

@uzairali2003 Жыл бұрын

hello man! great video, i have had my car trough service check and they said i have a faulty/blown head gasket. But i dont get any smoke and no milshake in the oil dipstick and the coolant looks kind of normal (just looks old) what whould u suggest to do

@Motorcarnut Жыл бұрын

Why did they say you have a blown head gasket?

@uzairali2003 Жыл бұрын

@@Motorcarnut They didnt really explain why just that i needed to be replaced. Since that almost costs more then car im trying to figure out if i should add some head gasket sealer or leave it as it is. Its an older car but with only 60.000 KM (37000 miles). Would be happy to hear you suggestion.

@rickiefeatherstone Жыл бұрын

Don't forget, usually it's a component that caused the over heating. Loke water pump, radiator, etc. Replacing gasket or engine and not the cause will only get you a second blown gasket.

@Motorcarnut Жыл бұрын

Good info! This video is about identifying.

@johnstarks32 Жыл бұрын

My car eats oil.. Do u think the excessive oil seaping into the seals and valve cover could cause a blown gasket?

@Motorcarnut Жыл бұрын

@yenpham-jb4wo Жыл бұрын

Seal around pistons are worn probably burning an unholy amount of oil. I believe 2008-2011 Camrys had this problem

@GiveItGas69420 3 жыл бұрын

my tacoma is smoking out the tail pipe when it cold but once up to temp it stops I feel a little loss of power and it vibrates more is it completely blown or would k seal maybe work?

@Motorcarnut 3 жыл бұрын

Hard to know for sure but some light white smoke is normal more like condensation when cold. You may have a head gasket starting to fail, I would stay away from any of those additives, most never work and if they do only for a short period of time.

@alibehaein8081 Жыл бұрын

thank you for the good info! i have a 2008 Renault Megane k4m. i was stuck in traffic and noticed the temperature is getting too high (fan started to spin in full speed) so i stopped the car and checked coolant level,oil ... and everything seemed fine. so i thought maybe it's because of battery body ground (which my car doesn't have). i continued driving ignoring the temperature and fan (car was working fine though) and arrived home. again fan worked for about 4_5 minutes and stopped. tomorrow morning i went to check the car and noticed that coolant reservoir was nearly empty and coolant had leaked out of the fasteners. a mechanic checked it mentioning it was because of a faulty thermostat and coolant sensor and changed them. now my car works perfectly fine (no blown head gasket symptoms) but it seems it isn't as powerful and fast as it used to be. what do you think is the problem? thank you

@Motorcarnut Жыл бұрын

Seems like it was overheating and boiled over. I would have it checked out soon before it gets worse. Could be just a bad radiator cap or thermostat.

@samanthaogden4643 2 жыл бұрын

I have a question. I have a carolla Toyota 1996. We were passing someone and the car started to smoke and it sounded like we blew a tire. But there was leaking oil from the engine and no hoses popped off. So what can it be ?

@Motorcarnut 2 жыл бұрын

Hard to say without the car in front of me but doesn’t sound good, maybe the car blew a rod something bad enough to cause oil leaking after a loud noise should be check by a local mechanic immediately

@jdmfans6078 Жыл бұрын

how i can find out if the block or head has cracked? well explained btw.👍

@Motorcarnut Жыл бұрын

Thank you! Both would have to be pressure tested but usually it's a bad head gasket.

@lindseyweaver6590 2 жыл бұрын

I did not catch my over heating in time and it blew some sort of valve and drained all the coolant. I had that fixed along with the thermostat, but it's still over heating and I hear what sounds like gushing/dripping above my feet when I drive. I don't see anything coming out and I don't see anything leaking on the ground when I'm stopped or parked. I watched for white smoke today but didn't see any. The mechanic thinks it might be a head gasket that blew with the original over heating. I noticed when I lifted the hood this morning that the reservoir cap had blown off and broke. I'm assuming I need a new one of those for sure. Any other ideas?

@Motorcarnut 2 жыл бұрын

The reservoir cap can not just blow off I don’t care how much pressure there is. You should find another mechanic and I think from what you’re explaining you did blow the head gasket or can be a cracked head or block but more likely the gasket. The gushing noise as you described is boiling coolant.

@AceQueenxo 3 жыл бұрын

Hey, I have a 2011 Honda Civic. My car started smoking like that right after an oil change. Does that mean the head gasket is blown and I need to replace the whole thing?

@Motorcarnut 3 жыл бұрын

Being it was right after an oil change that seems kinda strange? Are you sure it’s white smoke? Or is it blue? I say this because if it’s blue it could related to the oil change, wrong weight, overfilled etc?

@AceQueenxo 3 жыл бұрын

@@Motorcarnut the smoke is definitely white. I did check it and it is overfilled by quite some bit. But 30 minutes after the oil changed something made a scratching noise and a big cloud of smoke was behind the car.

@Motorcarnut 3 жыл бұрын

What I don’t like is right after the oil change this happened. Oil should not be overfilled and without being there it’s hard to know what happened, do you know what burning coolant smells like? to see if the car is burning coolant?

@AceQueenxo 3 жыл бұрын

@@Motorcarnut this is my first car and i just barely bought it. I have no idea about a lot of stuff. It did have a weird smell to it. But there’s no leaking or puddles anywhere under the car. (Not sure if that has anything to do with it.) I did check the oil and it doesn’t look like milky or anything like that. and thank you for responding I don’t have anybody else and i definitely don’t know anything about cars.

@austinbaize9338 Жыл бұрын

I read some questions asked and didn’t see the one i had. So I’m not burning off any coolant and i did a oil change a week ago and only noticed it to be discolored blackish gray. But i changed the exhaust manifold catalytic converter last night then today noticed more white smoke on cold start then also if I’m revved around 2,000 rpms like continuous if it’s revved is it still a blown head gasket ?

@Motorcarnut Жыл бұрын

Its possible, You can have someone check the coolant for exhaust gases that would indicate a bad head gasket.

@michael6885 Жыл бұрын

I have a 1996 Lexus sc400 1uzfe v8 engine ran lean for awhile then one night car started running terrible (shaking the cabin loss of power knock sensor codes) did compression test cyl 6 zero compression every other cylinders good compression. After watching this video my oil is definitely way past the fill line and I put the right amount every time I wouldn’t put extra like that. Car overheated slightly but gauge would go back down. In the months leading up to this upon starting the car after it would sit for a few hours a very generous amount of blue tinted smoke would come out the exhaust. Just wondering if this has anything to do with a blown head gasket and if not do you know a possible culprit/ solution

@Motorcarnut Жыл бұрын

The blue smoke is oil burning probably from the valve stem seals. You probably do have a blown head gasket because of the low compression and oil overfilled.

@megan1035 2 жыл бұрын

Great video! I have a question I have a bmw 114i and the coolant reservoir boils if the car has been driven for about 2 miles. There is a slight white smoke coming from the exhaust when it has been idling for a minute or so but once you rev the car a bit it goes and doesn’t continue whilst driving any help would be appreciated! Thanks

@Motorcarnut 2 жыл бұрын

Something is making the car overheat OR a blown head gasket is pumping up the coolant system as well. You should start with the simple things first. Make sure the radiator cap on the reservoir is good or just replace it. Also, try this, leave the car cold overnight and then before starting it squeeze the upper radiator hose ( the large one) and get a feel of how soft it is, then start the car and wait about 2 minutes and see if it feels the same, if it's harder than when it was cold only after 2 minutes then the pistons are pumping up the coolant system from a probably blown head gasket. Because 2 minutes isn't enough time for the engine to normally build up enough pressure to feel harder when you squeeze it, Make sense? Other things is from a dead cold start without driving the car, how long does it take for the overflow tank to boil over?

@megan1035 2 жыл бұрын

@@Motorcarnut it takes about 10 minutes of driving to boil, I’ll give what you said a go

@megan1035 2 жыл бұрын

I forgot to add the car doesn’t overheat (that I know of) the oil isn’t milky or anything like that and the car still drives perfectly fine despite the boiling coolant. I’m not sure how to find a temperature gauge on this car as it doesn’t have one on the dashboard

@Motorcarnut 2 жыл бұрын

The "boiling over" IS overheating.10 minutes is kinda of a good sign because that doesn't seem like the pistons are pumping up the coolant system. Like I said try replacing the coolant cap, it's cheap and can cause the overheating by not holding pressure. I know a lot of cars don't have coolant gauges and some you can't even check the engine oil. It's ridicules. They want you to bring the car to the dealership so they can make money off you, no other reason.

@megan1035 2 жыл бұрын

@@Motorcarnut I also forgot to add that there seems to be some red/orange stuff that looks like it has boiled on to the reservoir where the bleeding plug is I don’t know if there could be something linked with it. I asked a mechanic about it and he said it’s nothing to worry about but I’m not sure.

@fishface6247 2 жыл бұрын

What about oil leaking from the seam That separates the engine block and cylinder?

@Motorcarnut 2 жыл бұрын

That’s a good point, it’s rather rare but does happen on a lot of Subaru’s and that’s also a sign of a blown head gasket.

@sauldiaz5177 2 жыл бұрын

Hey I have a 2000 Toyota Camry and recently changed both radiator hoses and thermostat. After a couple weeks I noticed a thick white cloud of smoke come from the exhaust. What I’m confused is that it stops after the car warms up. Any idea?

@Motorcarnut 2 жыл бұрын

Yes, When metal heats up or cools down it expands. When cool, you probably have coolant seeping into the combustion chamber and as it heats up, it seals, makes sense? Probably the head gasket is starting to fail or a crack somewhere but more likely the weaker link which would be the head gasket.

@gang-gang8325 3 жыл бұрын

Does a car always over heat with a bad head gasket? My coolant is brown colour and it feels a big loss of power but it’s not over heating

@Motorcarnut 3 жыл бұрын

No, not necessarily. In your situation it’s probably leaking and losing compression in the oil ( crankcase) more than the coolant hence the brown color oil. And not pumping up the coolant system, yet.

@Deeznutzarehairy 2 жыл бұрын

You left out the part where the only symptom is compression from the cylinder escapes into to radiator forcing coolant into the overflow tank Mines doing that at the moment. No other signs just bubbles in the radiator.

@Motorcarnut 2 жыл бұрын

Yes you’re correct, I made another video on 2 other symptoms and it included this one.

@alfanhadi4638 2 жыл бұрын

Dear sir, what if I found oil residue on the exhaust tail pipe? Thank you

@Motorcarnut 2 жыл бұрын

Means vehicle is burning oil either through worn valve stem seals, worn piston rings bad pcv valve etc.

@alfanhadi4638 2 жыл бұрын

@@Motorcarnut thanks for the reply. I guess it"s best if I just walk away when I encounter a vehicle like that.

@Motorcarnut 2 жыл бұрын

It’s wise if you don’t have mechanic skills or know someone who does.

@alfanhadi4638 2 жыл бұрын

@@Motorcarnut thank you sir

@Motorcarnut 2 жыл бұрын

No problem

@De1015- Жыл бұрын

I have a 2006 Toyota Camry it’s not showing any of the signs you showed in this video I recently seen that my thermostat housing was leaking but before I found that out when I pour coolant in the radiator my motor shakes then my car kills do you think when I change the housing it will stay running or I have a blown head ?

@Motorcarnut Жыл бұрын

I don’t like that when you add coolant the engine dies. That sounds like coolant is entering the cylinders aka blown head gasket or crack somewhere. Changing the housing that’s leaking is a good idea but won’t cause the engine to run rough then die.

@cmk2527 2 жыл бұрын

I have a 5.4 excursion I just bought it’s running crappy and has a misfire but I went to replace the thermostat and it has that copper flakes stuff to seal leaks in the antifreeze in it …. I also have exhaust manifold leak and I noticed copper flakes where the exhaust manifold is leaking … do you think it’s head gasket

@Motorcarnut 2 жыл бұрын

Sorry to say but Yes I do. Whoever sold you the truck was trying to cover up a blown head gasket with those head gasket sealers that I tell people never work and are a waste of money.

@Davidk.p4 3 жыл бұрын

how long will your car smoke for if your head gasket is blown or leaking?

@Motorcarnut 3 жыл бұрын

If it's indeed a failing head gasket and leaking into the combustion area, Always. But can also be mixing with Engine oil and really no smoke at all.

@Grove330 2 жыл бұрын

Hey when im sitting idle at a red light, the temp gauge moves a little above the middle, then when I accelerate it goes back to the middle. What do you think this means? Some said radiator fan is cracked or thermostat. Im in a 09 Buick Lucerne super.

@Motorcarnut 2 жыл бұрын

If the car has no symptoms as I explained in the video then it could be a failing thermostat. Also make sure the coolant is clean and properly filled and system has no leaks.

@samw7402 2 жыл бұрын

My pt cruiser only runs hot when the coolant gets to boiling point then it runs to reservoir bubbling and it doesn't go back to radiator so it's dry and start getting hot and we lose coolant out the reservoir hose is it my gasket or air in system or icm or the thermo or coolant sensor. I straight wired my high n lol fans but now that don't work. The fans just quit working today Fri Nov 12

@Motorcarnut 2 жыл бұрын

Well you have an overheating problem for sure. Could be as simple as a faulty radiator cap or stuck closed thermostat, or the head gasket. You should get the fans fixed properly not wired manually the computer controls the fans so the car doesn’t overheat.

@fuzze7412 8 ай бұрын

I have a question, I own a lexus ls460 and noticed that recently it started blowing a decent amount of white smoke from the exhaust, not as bad as this car, but enough. What do you think my next step should be?

@Motorcarnut 8 ай бұрын

You can get a test kit that checks to see if combustion gasses are in the coolant meaning a blown head gasket. Search this: RELD Head Gasket Tester Kit Combustion Leak Detector for 50 Tests

@bwhitty2243 Жыл бұрын

Hey man I got a 2005 GMC sierra 1500 SLT 5.3L, over the last month and half everytime I start my truck there’s a lot of white smoke and has a blue tint but smells burning sort of and I checked my oil I lost a lot 90% of it and my coolant gets very low too, I have no leaks tho I checked all around and nothing. My oil isn’t a milky color either just normal used oil and due for an oil change with in the month, so should I changed the oil out soon and Motor flush it? Then get a new head gasket? Or maybe is it possible value covers or piston rings? I need some advice here thanks

@Motorcarnut Жыл бұрын

90% oil loss and no leaks? you sure? The burning smell is probably oil and or coolant burning . I always say start with the simple things first. you can try the motor flush and try cleaning the engine top and bottom so after it dries you can see if you have external leaks as well. If it still smokes then further checks are needed.

@Turner2503 2 жыл бұрын

My coolant levels keep dropping about 1/4 cup a month. No visible leaks on the ground. No smoke from the tailpipe at all, no visible signs of coolant in the oil. Doesn't overheat. Temperature gauge stays just below half way. Car runs perfectly fine though. It's a Toyota so I use the recommended red coolant. So when the car was completely cooled, I took the radiator cap off and started the car, and coolant immediately started to rise, but no bubbling whatsoever. Is this a symptom of a leaking head gasket?

@Motorcarnut 2 жыл бұрын

So, when you say the coolant immediately rises when you start your cold engine, does it overflow and spill out? Also try when the engine is cold overnight and radiator cap it installed start it and immediately check to see if the large upper radiator hose has pressure, it should have pressure within 2 minutes or less

@Turner2503 2 жыл бұрын

@@Motorcarnut Yes, it does overflow, but slowly. How do I check the radiator hose pressure? Do I need a pressure gauge?

@Turner2503 2 жыл бұрын

....also it stops overflowing once the car reaches its operating temperature, and fans kick on.

@Motorcarnut 2 жыл бұрын

When the car is overnight cold, squeeze the top radiator hose before starting the engine and feel how it feels with no pressure in it then start the car and immediately squeeze it again and see if it feels the same when it was off. Should not have pressure until the car is hot, if it has pressure let’s say with 1 minute after starting then the pistons are pumping up the coolant system because of bad sealing between the block and head and probably the head gasket starting to go.

@Motorcarnut 2 жыл бұрын

Ok that’s a good sign that’s it’s probably fine. Try what I said above.

@dleef911 2 жыл бұрын

I have the same car 2010 Mazda3 2.0L, overheated and engine wouldn't start. No oil mixing with coolant in overflow or oil pan. Coolant got into the combustion chamber when removed plugs and crank shoots out water. Is the engine savable with new head gasket or too much damage should I do an engine swap?

@Motorcarnut 2 жыл бұрын

I like to try to save the engine that's in the car before trying an unknown salvage engine. It depends on how bad it was overheated? Because these engines are all aluminum so good chance the head is warped and hopefully not the block too. If it we me, i'd take it apart and check how bad both are, if it's not salvable and the engine has to come out at least its much easier at that point on to remove it the rest of the way. This is assuming you're doing this yourself.

@johnsunn1256 Жыл бұрын

05 jeep 3.7 laredo had radiator, water pump and thermostat replaced just in August. Last oil change (faithfully change by sticker date), the guy says i have an oil leak. He suggests i let him put some lucas oil stop leak in there. I don't have any coolant leaks, resevoir is full, no white smoke after the initial very cold startup and jeep warms up. For the first time ever, I have yellow sludge on oil cap. Dispstick is clean. I decide to do my own oil this time so I could inspect the oil myself and I notice the bolt under my water pump is half out and another bolt is missing from the left side top of those wheels. 🤦🏾‍♀️I was hoping it was just the Lucas causing condensation issues and i just needed an oil change but now I am wondering if those bolts being loose and lost is causing problems. 🙏🏾 a good mechanic walk into my life. I didn't complete the oil change yet.

@Motorcarnut Жыл бұрын

I don’t think loose bolts are connected to the yellow sludge. I never use aftermarket additives. A little condensation under the oil cap is normal if not excessive. Tighten up the bolts, change oil again and monitor the oil again to see if there’s still a problem

@shaniquajohnson7571 Жыл бұрын

My old 1990 Celica is beat up with all bald tires and all the warning lights on. When I drive it's sluggish with white smoke coming out the exhaust. Engine is always hot on the temperature gage indicator.

@Motorcarnut Жыл бұрын

Well first should see what codes are coming up but either way there should not be thick white smoke at all

@zm8867 2 жыл бұрын

I had my radiator and my thermostat replaced on my 2007 Mazda 6i 2.3L . The car still overheats. What other part/s can I check next that will cause it to overheat?

@Motorcarnut 2 жыл бұрын

Start with the simple things first. Check or replace the radiator cap, make sure there is no air in the coolant system. Make sure radiator fans cycle on and off. When the car is overnight cold try squeezing the top radiator hose see how it feels then start the car and wait about 2 minutes the hose should feel about the same if it’s noticeable harder then you may have a blown head gasket pumping up the coolant system.

@rickharrison6325 2 жыл бұрын

Hiya iv got a problem with my Kia Sportage could do with some advice pleass...im getting a smell of fumes in the car and the exhaust is smoking(not all the time though) just been out for a drive no problems but on the way back had smoke coming out and a smell of fumes??? Iv had a new turbo fitted this year..any help would be nice

@Motorcarnut 2 жыл бұрын

Hard to tell, is the smoke from burning off the exhaust or out through the muffler? Also what color is it and does it smell sweet?

@victoreeno90tre41 2 жыл бұрын

Quick question...can a bad cracked open(no top or cap) radiator fluid reservoir cause any problems after driving the car but cars not overheating then start noticing heavily white smoke and car still not overheating but now engine start is very rough,idle stays at 1rpm and makes a dramatic rattling noise when pressing the gas while driving(specifically when car automatically is trying to go into second gear but hesitates,what can be the issue here?

@Motorcarnut 2 жыл бұрын

First off, yes the reservoir cap or a radiator cap must always be installed or the car will overheat 100%. Second, sounds like the head gasket blew or you have a cracked head or block but most likely blown head gasket. Also from what you're saying the engine is knocking now too.( I have a video on what engine knock sounds like, compare it to yours) should have it looked at asap.

@c.b7474 Ай бұрын

Hey man, hope you see this. I been having all sorts of deal with my car lately. 2020 Nissan Altima 2.5 SR AWD with 160k miles. I get timely maintenances and all. Anyways, i replaced the thermostat about 2 weeks ago because my car was getting close to overheating (i never let it get to red zone), got the thermostat changed and did a coolant flush- no overheating or near overheat since. Yesterday i started it and had a bunch of white smoke and it smelled sweet but went away after maybe 2 min. Checked my oil and caps and everything looks normal and it still drives normal. This morning when i started it i noticed a few bubbles in the resevoir tank where the hose is. Now, i will say it has had a code for the egr system and i am waiting to get the egr part tomorrow. Ive had the car looked at up and down 3 different times

@Motorcarnut Ай бұрын

Sounds like the head gasket is starting to go from what you described.

@c.b7474 21 күн бұрын

Hey. I wanted to follow up with you and let you know that the "bubbles" I saw was just coolant moving through the resevoir haha (I had someone verify). Anyways had a block test done and it turned out not to be a head gasket. No overheating or near overheat. No white smoke since that one time. The exhaust pipes are black and dirty almost like soot. Any other recommendations? I'm still having a vibrating start. No chocolate milk oil either. I just changed it. I forgot to mention I did recently get new spark plugs put in.

@ryansunderman4171 Жыл бұрын

Okay, I found this on Google. Looking for more advice- my car (2007 Honda Accord) has been overheating a little bit. Hotter than average (about 2/3 to top), but no smoke, engine doesn't cut out. I jave lost a little bit of coolant here and there, but nothing alarming. I've looked at the dipstick, but I can't see anything related to mixing with the oil or high oil levels. Would this be a head gasket issue or just a thermostat/radiator issue?

@Motorcarnut Жыл бұрын

I always tell people to start with the simple things first, check or replace the radiator or overflow cap first, then I would change the thermostat and go from there.

@muzikshqip1478 2 жыл бұрын

Hello , i want to make u a qestion please . I just bought a golf mk4 1998 1.4 16v The car pull out white smoke from exhaust Can u tell me plase what should i do ?

@Motorcarnut 2 жыл бұрын

It depends on how much white smoke, a little when cold is normal. If the car is losing coolant or the white smoke doesn't stop when car is hot and runs rough then you probably have a head gasket problem or something else.

@matthewpague1750 2 жыл бұрын

Could you also scope through the spark plugs holes into the cylinders

@Motorcarnut 2 жыл бұрын

To see if there is coolant in the cylinders? Yes you can.

@shaynehuber3426 2 жыл бұрын

My 2002 Pontiac Sunfire blows lots of white smoke in the winter in the summer the smoke is clear at first I thought it was my cattle convert

@Motorcarnut 2 жыл бұрын

Catalytic converters don’t produce any smoke.

@iamonline3221 3 ай бұрын

thanks dude, what if I don't have any white smoke on ignition but after 10 min when stopping in a red light I can see a white smoke for 1min?

@Motorcarnut 3 ай бұрын

Not normal if the vehicle is at operating temperature

@Random.Adventures. Жыл бұрын

thank you

@Motorcarnut Жыл бұрын

Sure, no problem!

@ewoiasio2784 2 жыл бұрын

does it hurt to use gasket sealer liquid if you don't have a gasket leak?

@Motorcarnut 2 жыл бұрын

I wouldn’t use it, they just don’t work and can cause clogging of the small coolant passages and in turn cause engine to overheat.

@oxmate 12 күн бұрын

i have replaced the radiator cap and the thermo but my problem is mine doesn't over heat nor does it blow white smoke but it goes up in temp when under load but doesn't over heat just get alittle hotter then normasl and then goes down just as fast as it goes up when not under load.

@Motorcarnut 11 күн бұрын

Can be a defective coolant temperature sensor.

@jaredbeatty1831 2 ай бұрын

My 2019 dodge ram (148000 miles) lost all its coolant. Pressure checked it two months ago and it passed pressure check. I’m not seeing any coolant leaks. Only other symptoms is a burning smell from the truck. No white smoke or milky oil. Any thoughts?

@Motorcarnut 2 ай бұрын

It has to be burning it then when it’s hot. Try test strips that detect exhaust gases in the coolant indicating a blown head gasket. That’s where I’d start.

@alexanderlopez-zacarias3848 2 жыл бұрын

I got 1997 Jeep Grand Cherokee Laredo. My coolant level goes slowly down every time I drive or if it sits over night after driving it will drive. It also backfires. Has a lot of oil leaks any help?

@Motorcarnut 2 жыл бұрын

Could be a coolant leak along with all the oil leaks and needs a tune up

@ghiles638 Ай бұрын

Hello mister i have a coolant leaking on my system , iswiched the radiator, checked the oil george to check if there was a leaking inside the chambers but there was not, i wonder where could the leak be , i have a honda civik 2009 automatic

@Motorcarnut Ай бұрын

Could be burning it from a head gasket that’s failing

@SnapMeOutOfit 2 жыл бұрын

Great video, please advise. Someone put oil into my coolant tank, my car overheated with the coolant boiling oil all over the engine. How bad is this? Do you think my engine is ruined? I think by the time I saw this issue I could have blown the head gasket maybe? my car reduced power completely

@Motorcarnut 2 жыл бұрын

Car will overheat and fail like it’s doing. Why would someone put oil in the coolant system? They should stay away from cars.

@SnapMeOutOfit 2 жыл бұрын

@@Motorcarnut but is my car ruined?

@Motorcarnut 2 жыл бұрын

Car is probably not ruined, but will have the clean out all the oil in the coolant system than take it from there.

@brianhartman4426 3 жыл бұрын

After I replaced my radiator the bottom radiator hose keeps popping off. It's a Mercedes CLK550 and it's almost like a clip holds it in. I bought a new clip and was going to try another lower hose. Prior I replaced the oil cooler because because there was oil in the coolant, no other signs of the gasket being blown and after I replaced the oil cooler it hasn't leaked into the coolant again, and thermostat was replaced and it doesn't over heat.

@Motorcarnut 3 жыл бұрын

Is it an aftermarket radiator? Sometimes they are not made as well as OEM. Make sure you push the hose all the way in and the new clip and o ring are seated the correct way. The clip sits in a grove in the radiator a certain way so when the hose is inserted it click into place.

@brianhartman4426 3 жыл бұрын

@@Motorcarnut Do you have an email I can send the pictures to? $400 OEM radiator.

@NinoBadFella 2 ай бұрын

I have a 2012 dodge charger that randomly shakes/vibrates on idle..car doesn’t overheat but it does randomly have white smoke coming from the exhaust when I accelerate,some days it will and some days it won’t.

@Motorcarnut 2 ай бұрын

Some thin white smoke is normal condensation. They have test strips you can buy that detects exhaust gases in the coolant system indicating a blown head gasket.

@ItsWoodGlue 7 ай бұрын

I have a 2010 Nissan rogue thats overheating easily but it doesn’t have none of these symptoms but my coolant does go down by a bit. Could it be the thermostat? I already replaced the water pump and it fixed nothing. And no leaks anywhere to be found.

@Motorcarnut 7 ай бұрын

Yes, or as simple as a radiator or expansion cap.

@robertalexandrubaba7065 2 ай бұрын

I have a peugeot 508 1.6 tdi. I drove through a puddle/more of a lake, and there was white smoke coming out of the exhaust for the next 2 hours then it only smokes when i press the gas pedal at maximum. What could that mean? I am also losing coolant after refilling

@Motorcarnut 2 ай бұрын

You sucked in water hopefully you didn’t blow the engine. If it clears up you didn’t if not you did.

@brianahamlett3174 7 ай бұрын

My car most mornings have white smoke come out the tailpipe and a coworker said it antifreeze burning meaning that it was getting into the engine and it could be blown head gasket or cracked head. I opened the oil cap and it was milky oil on the cap but not the dipstick. Inside the hole I noticed that it was milky oil on top as well. He said that it could be a vacuum leak from the intake. Need a little guidance to figure out the problem. Also other symptoms misfire on start up rough idle.

@Motorcarnut 7 ай бұрын

It does sound like you blew the head gasket. That would also cause misfiring.

@proflazarchickenttv574 2 жыл бұрын

What if I only have the overheat issue, the other issues aren't appearing, but I've done a full change of my thermostat and that didn't fix the issue, I'm planning on doing a coolant flush tomorrow in hopes that fixes it.

@Motorcarnut 2 жыл бұрын

That's a good start, also check or replace the radiator cap and back flush the radiator. Simple things first is a good approach.

@arrowalfa9923 2 жыл бұрын

@@Motorcarnut i have a 2008 f150 and I cannot find the radiator cap

@jupiterlegaspi7528 27 күн бұрын

My Jetta 2012 is currently showing temperature light on dashboard and a minor steam from engine after driving it for 15 mins- overheating. My car doesn’t have the 3 symptoms you mentioned and I’m hoping the mechanic will tell me that my engine doesn’t have a blown gasket. Hope tomorrow is my lucky day.

@Motorcarnut 26 күн бұрын

Good luck!

@charlesgomez5593 Жыл бұрын

What other reason would air be getting into my system and causing it to overheat? No smoke, no milky oil, no oil residue in reservoir. Awesome video and its giving me hope that I don’t have a blown gasket SO FAR. I have a 2016 kia with 133k miles. I have replaced thermostat, cooling sensor, radiator cap, coolant housing. performed radiator clean and flush. The only place I am losing coolant is from the reservoir overfilling and only during 30 min+ long drives. And im assuming its because air gets into cooling system by that point

@charlesgomez5593 Жыл бұрын

Thank you very much in advance

@Motorcarnut Жыл бұрын

If the coolant system is not bled properly it would cause it to overheat. Also the only way air can get into the coolant system is a leaking head gasket pumping up the system. Hopefully it just has to be re bled.

@charlesgomez5593 Жыл бұрын

@@Motorcarnut thank you for that, I've parked up a steep incline (lol) and used the coolant funnel system to purge all the air out a few times already.

@charlesgomez5593 Жыл бұрын

@@Motorcarnut is doing a vacuum bleeding of the air a must on certain vehicles?

@Motorcarnut Жыл бұрын

Do this, when the car is overnight cold, squeeze the top radiator hose with engine off to get an idea how much pressure it takes then start the engine and wait about 2 minutes if the hose feels the same as when cold that’s a good sign but if it feels harder then the cylinders are pumping up the coolant system because of a head gasket leak or cracked head. Because in 2 minutes the car is not hot enough to build pressure caused by heat. Make sense?

@steelpulse216 9 ай бұрын

I have a 06 Dodge caravan that has been leaking coolant really bad and last Thursday I replaced water pump and the week before that I changed the radiator. I was driving yesterday and smelled wires burning and then I saw white smoke coming from the hood. Pulled over and coolant was leaking from the front. The burning wire smell is gone but inside and outside it's smells like coolant and also the engine is hissing and I saw coolant all over radiator fan. Have any idea why my van is still leaking coolant even though I have a brand new water pump and radiator?

@Motorcarnut 9 ай бұрын

Sounds like you blew the head gasket. Probably overheated too much before.

@arthur.monticelli 6 ай бұрын

Hello sir! Did you have to resurface/flatten the cylinder head or only a gasket swap fixed this problem? I would highly appreciate an answer, thank you so very much for your video and your attention.

@Motorcarnut 6 ай бұрын

Thank you, really appreciated! If the engine did not overheat then you don’t have to resurface the cylinder head, but you should still check it for straightness. I have a video on checking cylinder head for straightness too.

@arthur.monticelli 6 ай бұрын

@@Motorcarnut I really appreciate your answer. In my case yes, it did overheat a little and then the white smoke starting coming out of the exhaust pipe. So I guess I'll just take the head out, have it resurfaced somewhere and then put it back on the car... thank you so much

@Motorcarnut 6 ай бұрын

@guitartur Yes to be on the safe side.

@indiahwilliams7326 Жыл бұрын

Great video!! So although you had white smoke why did you not have any milk shake on the dip stick ?

@Motorcarnut Жыл бұрын

Thank you!, good question. Because the coolant was leaking into the combustion chamber and not in any oil galleries. So there was no mixing oil with coolant.

@pepeau-jh4fq Жыл бұрын

@@Motorcarnut And what is the solution in this case? My SUV has a lot of white smoke, but the dip stick is clean with only oil. I know that´s a head gasket problem. What can be the solution for my car? thanks!

@Motorcarnut Жыл бұрын

Head gasket replacement if the white smoke doesn’t go away.

@washboardjim 5 ай бұрын

After I Drive my Saddat a bit then it Starts to show White Smoke, . What do you think about that ?

@Motorcarnut 5 ай бұрын

If the vehicle is blowing white smoke with the engine hot then it’s probably burning coolant. Which can be a head gasket or oil cooler failing etc.

@babycakes8434 2 жыл бұрын

I have a 2004 Acura MDX. During the summer there are no codes, and the car is running fine, during the winter I get back the codes. I replaced all spark plugs and all ignition coils. Car dets to 3000RPMs while accelerating on the lower gears like 1st and second. I have codes P0300, P0306, P0302, P0301, P0304. What is that a head gasket? Or could be throttle body that in this car comes with Air mass flow sensor, and Idle air control valve built into one piece?

@Motorcarnut 2 жыл бұрын

Sounds like a heat sensitive electrical problem. This type of problem has to be diagnosed with live data on a scan tool. Those are misfire codes so probably not a single issue like a coil or plug. Could be low fuel pressure too, crank or cam sensors or mass air flow sensor but you don’t want to just throw parts at the situation. That’s why it should be diagnosed with a scan tool.

@costantineyoussif6679 2 жыл бұрын

Great video man, i do get white puff smoke after my car driven and sets for a short of time white smoke last for 3-4sec at startup while car is warmed and it does happens often mainly when my car parked incline ? Any idea what is that ? 08 Lexus gs350 it has 123mi thanks again

@Motorcarnut 2 жыл бұрын

Thanks! If you are getting that white smoke when restarting a hot car then it seems to me there is a little bit of coolant burning off meaning the head gasket is starting to fail. Coolant should never be in the combustion chamber. And a crack somewhere would be rare.

@costantineyoussif6679 2 жыл бұрын

@@Motorcarnut but my coolant level always at the line 🤔

@Motorcarnut 2 жыл бұрын

Maybe the puff of smoke is blue ish? That would mean you’re burning a little oil

@user-gs3lf6td8h Жыл бұрын

Hey there don’t know if you can help, but I’ve had a bit of a overheating issue with my car, my car gets hot and don’t seem to know how to cool it’s self down my coolant is bubbling and over obviously overheating and it likes to poor the coolant underneath the car, however my oil is immaculate so is the dipstick and coolant cap no milky residue what so ever and no smoke what so ever coming from the exhaust, I had the engine coolant bottle replaced incase there was any cracks and got a new lid along with it but it’s still happening, any help with advice would be great, thanks I’m advance👍🏻

@Motorcarnut Жыл бұрын

Ok, so it seems you have a overheating issue that’s probably not a head gasket problem. Do cheap things first. I don’t know what vehicle you have but try changing the radiator car or expansion tank cap and see it that fixes it. If not, thermostat would be my next step. Radiator itself can be clogged, water pump too but rarely they fail to cause overheating condition in most vehicles they usually leak first. So there are some options.