I just got a really clean 2002 civic as my first vehicle and its been burning coolant for about a two months now with no visible leak. me and my friend who is a mechanic have a few ideas on what it could be but "he's been a mechanic for 5 years and I wont lie I don't know jack shit about vehicles but I like learning and i mean I just got my first vehicle 5 months ago lmao" anyway I have like 2 hours until school so I figured I might as well watch some videos to get some ideas, thanks for the video ! simple and easy to understand.

Love the explanation, straight to the point 💯

Dude! I thought I was gonna have to change my hoses! THANK YOU! Consider me your newest subscriber!

Awesome video, just had that problem with my 2007 honda civic

Thank you for this🙏🙏

Great video. Have this problem and this may be the answer

Good advice, thanks!

Nice Video! Where is the video of you changing the defective parts?

Thank you!

I have heard that some 8th gen Honda civics have had the engine block crack due to a problem during the casting of the block which will cause a loss of coolant

In my case, I'm literally consuming water with " no visible trace". I eather have a physical phenomena going on, or I can consume 1-1/2 gallons of water an hour, with no leaking on the ground or steam out the tail pipe. The water that is getting into the combustion chamber is being turned into energy in order to stay in complience with the conservation of mass.

Brilliant!!

Thanks for the video! My 2005 civic has been over heating especially more now in the summer. It's never smoked as I pull over quickly. I brought it to two mechanics. (First mechanic) The pressure test went well apparently and no signs of leaking. (Second mechanic) ran dye through and speculates a head gasket issue but is uncertain. When I add coolant, it's 95% into the radiator and not the resevoir. It's hard to want to pay for a head gasket without knowing for sure if that's the issue. If you stumble upon a situation like mine, maybe you could post another video 😊

Hopefully this is my problem. I have a 2003 civic and every time I remove the radiator cap to check the coolant level it’s always a little low and yes the coolant overflow bottle is full. I haven’t had time or money to go get a pressure test done. Hopefully it’s not my head gasket. It’s not over heating.

What about leaving the cap off and let the car idle a few minutes and some steam comes out the radiator?

Hi, I just recently bought a used 2008 Honda Civic Si coupe and I noticed there was no coolant in the reservoir. After letting the engine cool down, I fill the reservoir till it hit max. A day later, I took it for a drive and the temperature seemed fine, it was in the middle as it always is, however when I checked the reservoir again and the coolant was all gone! No visible leaks whatsoever. I thought it might be the head gasket, so I turned on the car, warmed it up, and revved the engine. I had a friend check if there was any fluid or white smoke come out of the exhaust and there was none. I checked the radiator cap and it didn’t seem worn out...any theories as to what it could be?

What happens when I’m driving my coolant goes down but when I’m not moving it goes up ?

I have the exact same issue on a 99 Civic. It's a slow leak or coolant disappearing somewhere. If I fill my radiator it will take 2-3 months before it will start overheating again. Everything I have replaced coolant related is Honda OEM except the radiator. The radiator is from O'reilly's. It's been driving me nuts because I don't see any visible leaks.

This is exactly my problem. Thanks for posting. Mine is a 2003 civic. I have to buy a whole new Radiator .

My problem is identical to this. I already had checked the cooling system with no visible leaks on radiator or hoses. I did notice my radiator cap was looking rather.. crusty to say the least. After 3 test drives i had coolant at the bottom of engine bay. Lets see if new cap fixes the issue

yesterday my civic engine started smoking and engine warms up...i opened the bonet and seen coolant is leaking and there is no coolant and car didnt runs perfectly its all jerking while i rev the engine.. engine sounds like crap and smoke coming from exhaust tooo....help me what would have happened...😣😣

what is that exhaust port behind the overflow and what does it mean if it's venting steam and whistling like a tea kettle

I had the same issue but I was losing coolant through the expansion tank whenever I was going highway speeds changed multiple things before finally figuring out that the system was over pressurized due to bad head gasket

I have an O2 Honda Civic. I replace the radiator and the reservoir because it was having his shoes overheating. My fans work but it was burning through coolant really quickly. Since I have changed out the radiator and everything it's still burns through coolant kind of quick, not as fast as it was. It doesn't overheat anywhere near as much, but now the reservoir has a black buildup in it. Any clue what that could be?

Hey sir, I am having doubts that I have a blown head gasket, how can I be for sure? Is there any test I can do?

Hi, i have issues with my prestone with my Honda civic 2002. There's air build up in the engine and the prestone goes right into the reservoir, and spilled through the reservoir, and stay full. I have changed the radiator cap and thermostat. No white smoke coming off the muffler, no white desposits in the oil. When i remove the radiator cap after engine cooled up, there's a big bubble of prestone coming off the radiator. I noticed I only started to have issues after I did an oil change. I did not go behond the max. mark. Could be the head gasket, but any other areas that it could be? Mario, Nova Scotia, Canada

Gotta 04 civic,new water pump,new thermostat but still leaking from the cap. What could be causing it

I’m having an issue where it seems like fluid is spraying out of the radiator and building up around the battery, causing a lot of steam to billow up. It started yesterday because my serpentine belt broke. I replaced the belt and it’s been running well, but by the end of my commute to work, the battery was steaming again and I opened the hood to see where things had sprayed. Any suggestions for how to remedy this? Should I replace the radiator cap? I don’t really know much about cars, but I rely on my vehicle for literally everything, and I will be completely fucked if it stops working… Don’t really have money to take it to a shop or spend a lot on parts.

I have a 03 civic. It starts overheating periodically, like it goes a week or 2 without overheating then all of a sudden it starts. I have changed the thermostat about 3 months ago. I don't see anywhere that it is leaking... But a few minutes ago I was looking at it and there was a small puddle of coolent on the radiator, not from pouring coolant in. There isn't steam coming from around the radiator cap but rather closer to the puddle. Could this be because I have a cracked radiator?? Please help!

Pressure raises the boiling point.

If I am missing half a glass of water in the radiator, I do not fill water and then they disappear that way this is the situation regularly. Is it okay? And in a condensing tank everything is fine

My car coolant gets empty quick especially when i turn on the A/c what's ur recommendation?

My coolant keeps getting low but no overheating! We changed the thermostat it's still the same! The radiator cap looks good too 🤨🤨🤨🤨

Happened to my Honda 2013 as well... Just find out it was gasket issue. Had to fix the engine head and it is fine now.

I had the same problem found out my radiator fan was not working

how much coolant lost is considered normal?

Erosion? No, corrosion.

And it keeps suicking antifreeze like crazy

Still, why was it losing coolant? Overheating and losing coolant are two seperate things!

Okay but mine is brand new but there is no visible leak and it over heated while idle

I was losing my coolant through the engine block. It had a crack

I got a 2004 Honda Civic with a mystery water leak. It was venting through a bad radiator cap that problem has been fixed. The system seems to not hold pressure but here's the mystery. How to lose about a quart of water per 10 miles. Recovery tank does not overflow water and recovery tank cold and up to the top no over flow. A blown head gasket would make the radiator puke and it is not puking. Also I got no oil in my water and no water in my oil. No water or steam out exhaust. The engine is not overheating the engine gauge stays right where it is supposed to be until it runs out water. I can't find no pin holes in a radiator hoses or anything. When you turn the engine off you cannot hear no hissing or see any steam. The water just disappears into the Twilight Zone.

So it’s a head gasket it’s going out the tailpipe

Hi im from South Africa I search whole day for a answer. I realy realy realy hope someone can help me. I got a Fiat 128 rally 1974 The radiator cap vacuum part is gone and have no rubber seal on bottom only big top rubber seal. So the water is going freely to the coolant bottel. The cap is open inside. So the water have no pressure and can go freely back and forward without any valve have to open. Now.. can this be the reason my kar overhead after so 10 km or in traffic light it get FAST overheat?

why don't you show how to replace the part you're suggesting?

your moving the camera too much annoying to watch