How to EASILY Diagnose Engine Connecting Rod Knock! Spun Rod Bearing

Рет қаралды 567,552

5 жыл бұрын

Freddy shows you how to diagnose engine connecting rod knock or spun rod bearing and goes through the steps to find out if it's a connecting rod knock, and which cylinder it is.
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Пікірлер: 382

@lh6955 3 жыл бұрын

Love the way you did the step by step with this AND got really close with the camera to show us. I could actually do this myself with the right tools.😊 I love learning car stuff

@Foshogi 2 ай бұрын

i loved it so much thats all i do is build my car. true happiness

@mojo_m7436 3 жыл бұрын

Great video and great tip!! I really like how you put together the clip--editing and close-up!

@ORego-em8yf 4 жыл бұрын

Great video my man! Kudos for taking that challenge, enjoyed it much! And it was cool to see the extension used to find rod knock!

@PoorManMods 4 жыл бұрын

Thanks!

@RallyLancer95 5 жыл бұрын

Knock knock. Who's there? Cylinder 3

@NotSoCrazyNinja 4 жыл бұрын

I can imagine a mechanic saying this to a customer. Mechanic: Welp, I have reached a conclusion. Customer: ? Mechanic: Knock knock... Customer: ... Who's there? Mechanic: Cylinder 3, you have rodknock. Customer: o_o

@joey0618 4 жыл бұрын

kzfaq.info/get/bejne/o7qSf7Nqu8unaHU.html

@siuleopouesi5794 2 жыл бұрын

🤣🤣🤣

@sophea9253 Жыл бұрын

🤣🤣🤣🤣

@Yomouf22 Жыл бұрын

Dude wow this hit so hard just now

@jessejaviangel 4 жыл бұрын

Great informative video! Keep up the great work.

@stephenkulawinski4200 5 жыл бұрын

First commercial I think I've actually enjoyed ever on KZfaq

@PoorManMods 5 жыл бұрын

What was it?

@sadboycali 3 жыл бұрын

I'm so glad I found your channel. I subscribed. Keep doing what you're doing!

@PoorManMods 3 жыл бұрын

Thank youuu!

@Boz1211111 5 жыл бұрын

just found your channel thans for the info im diagnosing my lawn mower... hehe poor mans mods heheh lawn mower...

@04RFMCobra 5 жыл бұрын

Just found your channel, glad I did!

@PoorManMods 5 жыл бұрын

Thank you! Please subscribe a

@cb2832 4 жыл бұрын

used this method on a 2004 corolla, found cyl 4 had bad slack. Thanks!

@mykline1 5 жыл бұрын

Good troubleshooting. I like the way you found out which cylinder had the rod knock.

@PoorManMods 5 жыл бұрын

Thanks!

@richardprice7107 5 жыл бұрын

Cool...thanks for the simple test.

@ghanatekton8459 4 жыл бұрын

Excellent video thanks. I have more understanding of the sounds. But it’s hard to hear what your heard. But I’m not as exsperienced

@neilgreen007 Жыл бұрын

Great video. Thank you for taking the time to make it.

@PoorManMods Жыл бұрын

youre welcome!

@DiegoGarcia-nk8vz 4 жыл бұрын

very helpful and brief. thank you much

@matyLSX 5 жыл бұрын

Great channel.

@PoorManMods 5 жыл бұрын

Thanks!

@user-ph2df6fo3y 3 жыл бұрын

My car makes a sort of grinding noise (semi similar to this one) but only at 2700 rpm ish. I have an 09 impreza sport. It also does it at around 1400 rpm when it's a super cold start and I start driving right away, but then it goes away when it warms up. However the 2700 rpm grind is always there pretty much, would this be an early sign of this? Thank you!

@bobanyfingelf 4 жыл бұрын

Great video bro!

@forestghost7 4 жыл бұрын

thanks Freddy! gonna try this on a 50 yr old 1.8L pushrod 4cyl motor w/ a "ticking" knock below the valve train (noise is not valves). gonna be tricky; spark plugs are not directly overhead, they're at 45 degrees. Car is a 1970 MGB with 250,000 miles.

@mortifiedbmx9282 5 жыл бұрын

Thank you very much this will be useful for tomorrow to check my engine that i just installed and rebuild smh 😂😂

@PoorManMods 5 жыл бұрын

Thanks for watching!

@gothamems5628 5 жыл бұрын

Awesome channel my friend!

@tonycstech 2 жыл бұрын

Poor man doing everything him self is my kind of club. Thank you.

@PoorManMods 2 жыл бұрын

Thanks!

@TheYoyo2369 3 жыл бұрын

Your videos are awesome, man thank you!

@PoorManMods 3 жыл бұрын

Thank youuu!

@sherabpuntsok2418 5 жыл бұрын

Very good tip ! ! !

@hanzelalvarez4032 2 жыл бұрын

like this guy! Goes Detail by detail very helpful

@PoorManMods 2 жыл бұрын

Thank you!

@jesseschlenker7076 2 жыл бұрын

Thanks man worked great on my John Deere!

@koso0423 4 жыл бұрын

really cool! very helpful!

@pancakecarteltv256 3 жыл бұрын

Hey got a video of you fixing it?

@LyfUninterrupted 4 жыл бұрын

Is there a way to diagnose a bad piston wrist pin? Engine shop is telling me my Triton V10 has piston skirt slap on #6 cylinder which requires a new engine. Compression is fine and the engine runs great other than the healthy knock.

@MrBojangles901 2 ай бұрын

Brilliant! Few will share this information. Thank you.

@PoorManMods 2 ай бұрын

thank you!

@BilobateMadusa 3 жыл бұрын

By heart feels that start up

@Spnfirearmsuglymom 5 жыл бұрын

Love your channel bro

@PoorManMods 5 жыл бұрын

Thank you!

@Spnfirearmsuglymom 5 жыл бұрын

Poor Man Mods :)

@fli9614 5 жыл бұрын

Thanks a lot!

@WelcomeToDieBaby 4 жыл бұрын

Thanks really man for sharing this method..

@PoorManMods 4 жыл бұрын

Thanks for watching

@barbossajacksparrow9481 8 ай бұрын

Nice video, thanks

@mohabuthabdoolsamad6879 2 жыл бұрын

Nice advice am from Mauritius Island.If we having an issue like this? Am using Obd Torque pro am having a misfire on cylinder 4 can it be a rod knock will it recorded it as a misfire?But no engine management light is on I just get it on the application.

@bodhizatva 3 жыл бұрын

great video, thank you for the help.

@PoorManMods 3 жыл бұрын

thank youuu

@user-oy6qn8bl9v Жыл бұрын

Great information, thank you sir!

@PoorManMods Жыл бұрын

Thanks!

@AsianTechnic 3 жыл бұрын

Yes nice explain also good experience

@TheOfficialSoulfire 4 жыл бұрын

Thank you I'm going to try this tomorrow

@abisismael1343 3 жыл бұрын

Interresting. Thanks

@Gkitchens1 Жыл бұрын

I just bought a crown vic that got rod knock. The seller told me they had ot diagnosed as a cracked exhaust manifold which I know is possible but I've pretty well. It still sounds like it's flex plate knock as it is loudest directly in line with the flex plate when checking with a stethoscope but it's characterized exactly as rod knock. I'll use your steps here to see if I can figure it out. Fortunately it has straight piped exhust and no cats so I can here it's got a strong misfire on rhe drivers side so I have a starting point.

@FLiK773 4 жыл бұрын

whats the most i should pay for a kia forte in this condition and how much will it cost to fix?

@twosnjuk 2 жыл бұрын

This was great ... Thank you.

@PoorManMods 2 жыл бұрын

Thank you!

@thesquirrelchroniclesakare7808 5 жыл бұрын

Haha.... Wonder if CJ's know any of this stuff ? Great job bro

@PoorManMods 5 жыл бұрын

Thank you!

@gilvngs 4 жыл бұрын

Omg it worked my #2 is moving on my sonata

@davidbuchanan5602 5 жыл бұрын

Nice Video!

@PoorManMods 5 жыл бұрын

thanks!

@barraswap3478 3 жыл бұрын

just bought a 94 Pajero not sure what there called in north America anyway going to use this trick to see if it has connecting rod knock thanks for the infomation defiantly earned my sub

@rayg3074 4 жыл бұрын

good info

@j-5087 3 жыл бұрын

Do you have video of fixing cylinder 3

@stephencrabb5123 Жыл бұрын

Mine is the same Volvo V40 1.8 petrol. Lots of cleaning and sanding but can be done if your new bearing's are the write size

@RodknockRhett 4 жыл бұрын

Easier to do this old school trick. Unplug one coil or spark plug wire (depending on your car). Start it. Does the knock sound quieter? If not, repeat for each cylinder. If it never get's quieter, than it must be something else.

@warrenlancaster8045 3 жыл бұрын

That’s only for rod bearings. Main bearings won’t differ

@jasonamerica7618 2 жыл бұрын

@@warrenlancaster8045 This test is only for rod bearings as well

@zionman9149 2 жыл бұрын

Yes it only the rod bearing

@arthurmoore1524 2 жыл бұрын

Don't you have to remove opposing rod cylinder wire as well on v8's?

@SailingHighSeas 4 жыл бұрын

Good video

@whiteshedrecordings Жыл бұрын

Thanks for this vid! I was able to diagnose rod knock in my sons car because of it.

@PoorManMods Жыл бұрын

Awesome!!!

@remenence 3 жыл бұрын

Now just need the video for repairing the knock 😂

@hugoayala6472 4 жыл бұрын

Great video I'll do that this weekend do you have the video when you fix it

@PoorManMods 4 жыл бұрын

We rebuilt the entire engine, the crank was even bent. No video though

@austinbrodeur22314 Жыл бұрын

great video!

@PoorManMods Жыл бұрын

Thanks!

@kevinswaby5733 Ай бұрын

You are a genius

@PoorManMods Ай бұрын

Thanks 🤓

@NoMurrcyProducedit 4 жыл бұрын

Is there a video on how to rotate engine

@tyronejason 6 ай бұрын

got a question im in the process of trying your method out and im not sure if im feeling it move or not but i do have a concern over when manually turning my motor over i have all spark plugs removed and its a little 1.8L 4cyl and the motor spins super easy until it gets to a certain point then it takes a considerable more effort to get it to turn then it spins suoer easy once again. i would assume that if the sparkplugs are out and there is no compression at all happening then it should spin easy throughout the crabks revolution and not get harder to turn could this be a sign of some sort of binding withing the crankshaft to pistion system?

@williamcavalier 4 жыл бұрын

Thanks, after listening to that Kia I'm certain my L61 is toast.

@larryjean1217 3 жыл бұрын

On god me too 😂😂😢😓😓

@ToyotaCelicaDude1 4 жыл бұрын

I probably missed it in the video, but, is this the 2.0 or the 2.4? 😊😊 If I'm not mistaken the 2.4 but can't fully tell

@ozzy5368 5 жыл бұрын

Good video. Cuple questions: What if it's a bad wrist pin? What if you have a V engine? How could you do this test?

@PoorManMods 5 жыл бұрын

Not sure and not sure haha, sorry. Thanks for watching though

@RabeaHussain 4 жыл бұрын

thank you for the great tactic to figure it out , if i have big end bearing damage , i need to remove the crank should i replace the main bearings as well? and the bolts ?

@arthurmoore1524 2 жыл бұрын

Yes. And yes. Threads stretch on bolts, especially rapid temperatures. Once tourqed, true final tourqe can never be achieved again. Replace main bearings. You'll wish you did later. Also make sure you clean all the oil bores, vents, any sludge with a gasket scraper and coat hanger (wire) to be sure it's fully clean and there's no blockage. Is it still running?

@RabeaHussain 2 жыл бұрын

@@arthurmoore1524 thanx .. i replaced the engine on my focus mk2 ..it was costly to fix bad bearings, ring pistons and the head bolts got loose beacause of over heating earlier i did facing new gasket then agian head bolts got loose and i saw oil in coolant.. the head threads was damged cuz of heat ..i found a cheap engine and swapped

@kaspertexas3627 3 жыл бұрын

Dude ur bad ass this video helped a lot

@PoorManMods 3 жыл бұрын

Thank youu

@rlt102 Жыл бұрын

One question. I have a 2006 dodge ram 1500 4.7L so the problem I’m having is a ticking noise on my engine. It’s coming from the passenger side and it only starts ticking when the truck is warmed up. I have oil in it and been doing the oil change on that truck. Could it be the lifters?

@christianorozco6897 3 жыл бұрын

Is it normal for rod knock to go away when cruising only knocks on when it’s in park

@MacLaw3084 4 жыл бұрын

i may have missed it but to what level are you bringing the extension to when you have it in the cylinder?

@rosewoodtxmade 3 жыл бұрын

intake stroke tdc

@DaveWatts_ejectamenta 2 жыл бұрын

Nice. Only works with spark plug holes that are centrally located in the cylinder head I expect (eg not my airhead bmw), but good technique anyway.

@cbstrdst4892 5 жыл бұрын

Genius.

@halrhoads6194 5 жыл бұрын

Top Notch Useful Tip! (But do wish you were able to go ahead and open up that oil pan in the Video) Thanks, man.

@PoorManMods 5 жыл бұрын

Thanks! Glad you enjoyed it!

@JohnNorris411 3 жыл бұрын

You can fix that through the bottom if you remove the oil pan? Replace bearing or tighten the nuts? Or do you have to pull the entire engine apart?

@PoorManMods 3 жыл бұрын

In our case the engine had to be pulled. Needed to replace the crankshaft and 1 connecting rod. Its always good to fully remove the engine and have the rods and crank checked if youre experiencing a knock from the main or rod bearing

@bodhizatva 3 жыл бұрын

subbed and thumbed my guy

@tankarian1987 4 жыл бұрын

good idea...................

@chrisstory6607 3 жыл бұрын

Our Kia has similar issue , spun bearing on the crankshaft.

@julioflores8141 4 жыл бұрын

I have the same problem as I can fix? I replace the bearings and the same problem

@durvalrebelo2624 Жыл бұрын

I hope you do another video showing how you fixed it.

@PoorManMods Жыл бұрын

I didn't film it but the entire engine got rebuilt, the crank even needed replaced because the knock slightly bent the crank according to the machine shop

@AwakeningEnthusiast 4 жыл бұрын

I have a 2016 Kia soul for sale with this problem. It's in mint condition besides the engine issue.

@SailingHighSeas 4 жыл бұрын

Is it good idea to use impact wrench for removing spark plugs?

@PoorManMods 4 жыл бұрын

@arthurmoore1524 2 жыл бұрын

Yes do it. Most are backwards threaded too

@jetlagtj427 3 жыл бұрын

How did u turn the engine?

@jonandis3559 2 жыл бұрын

nice video followed

@PoorManMods 2 жыл бұрын

Thanks!

@eyedea81 3 жыл бұрын

Is there a 2nd video? Id like to know if you were able to fix the cylinder

@PoorManMods 3 жыл бұрын

No video, pulled and completely rebuilt the engine.

@BjornFSE 5 жыл бұрын

Awesome, Informative Learn sum'n new each day.

@PoorManMods 5 жыл бұрын

Thank you!

@I69Sk8er69I 4 жыл бұрын

Man, so I think the slapping I’m hearing is my chain tensioner because the sound goes away with higher revés and I have no loss of power. Does rod knock stop with higher revés?

@PoorManMods 4 жыл бұрын

Could be the chain, rod knock will not go away to my knowledge

@vsDrunkenYoda 4 жыл бұрын

What should I type in the search inorder to learn how to turn engine manually? (2006 Chrysler town and country). Great Vid👍btw

@ianbowline404 4 жыл бұрын

A lot of times you can get a socket on an alternator and turn the whole belt and crank.. if not, pull the passanger side tire and get a socket on the crank and turn clockwise

@vsDrunkenYoda 4 жыл бұрын

@@ianbowline404 TY,can't wait to learn more.🍻👍

@21chch 2 жыл бұрын

Thanks mate. My 95 Camry just started up some knocking on the freeway … Im hoping this is the problem…. 😬

@PoorManMods 2 жыл бұрын

Youre welcome, good luck!

@carlodonnell146 9 ай бұрын

It is easier to use that method with an inline vertical engine; but how would it work with a V-ENGINE with the cylinders on a slant?

@rougeneon1997 3 жыл бұрын

Wow you really let that extension slam rite down on those piston tops lol. Im sure it isnt a HUGE deal though. Great tip however

@memesyandhorrorshorts Жыл бұрын

I never imagined how cheap it is to rebuild a motor lol I'm currently sitting on a 2006 dodge charger with what sounds like spun rod bearing it doesn't necessarily knock but it runs rough but idles correctly with a occasional dip in rpm but that probably because of how rough it running the start up takes a sec it cranks for 2-3 seconds then fires right up the sound sounds like it is coming from the top tho but really could be anywhere lol I may be replacing rod bearings and sanding down the crank and connecting rod maybe shall see how it goes when I buy the parts and drain the oil and drop the oil pan if I can I don't remember if my car has any bars or anything in the way

@earl8590 4 ай бұрын

Are you pushing the extension down the sparkplug holes to feel on the actual piston?

@PoorManMods 3 ай бұрын

Yes

@MacLaw3084 4 жыл бұрын

just out of curiosity how much longer could the engine last had you only replaced the one bearing? thanks

@PoorManMods 4 жыл бұрын

In our case it wouldnt have lasted. The crank NEEDED to be replaced as well

@zachhearnsberger5575 4 жыл бұрын

How much does it cost for a Chevy Silverado Z71 V8? Kinda scared to hear the price 😂. I recently have a noise coming from my truck and the noise is louder when you get near the oil pan. The noise goes faster when accelerating. I really hope I could get it fixed!!

@mrkidofminecraft 3 жыл бұрын

My 99 Toyota 5SFE has a rod bearing knock on two cylinders (2 and 3, I’ll switch out all four due to the dry oil change.

@ptbruiser2243 2 жыл бұрын

Would the noise from rod knock be constant? I have almost the same noise but it comes and goes i can tickle the throttle and make the noise come and go. The car can sit and idle for long time w/o any noise at all.

@PoorManMods 2 жыл бұрын

I'm not sure. Try the socket extension test

@BerryTheBnnuy 4 жыл бұрын

Can rod knock be erratic though? All the videos I've found of it have it being a very rhythmic thing... I have an engine that's occasionally getting a clunking sound. Only occasionally happens at speed, mostly happens on initial acceleration from a complete stop, sometimes happens while the engine is warming up... I just bought a whole crank shaft that's in excellent condition (it's an antique motorcycle so... finding new parts isn't always possible, though oddly I can get new cam shafts like they were tictacs...)... Anyway, I'm beginning to wonder if I'm not having a spark plug issue and I'm spending money buying rare, unworn parts for nothing... Shit, I need to buy a set of spark plugs ASAP to make sure before I go any further...

@phillippardo5712 Жыл бұрын

Any update?

@BoostedSpeedDemon 5 жыл бұрын

Honestly how I've always found a rod knock, is to just pull the spark plug wire off of each cylinder as it's running, and whichever one stops knocking when you pull off the spark plug wire is the bad cylinder, and generally you can tell it's a rod bearing because if it was piston slap or a wrist pin, it tends to continue knocking even with the spark plug wire off.

@Boz1211111 5 жыл бұрын

what when i have 1 cyl engine?

@liveandletlive2894 5 жыл бұрын

Care to explain to a rookie what a piston slap or wrist pin are?

@stonekeys6252 5 жыл бұрын

I thought that's how you would find a piston slap?

@liveandletlive2894 5 жыл бұрын

@@stonekeys6252 would usually indicate either 1 but if it continues its prob a main bearing knock

@UnicornRyder04 5 жыл бұрын

I thought some knock only on acceleration? Not just while idle

@osamamaddani 3 жыл бұрын

where is part 2 , please? I want to know if it can be fixed from the oil pan , cylinder 3 only, since as far as I know mechanics replace all the bearings one they are knocking, and also I want to know how can you tell if the cranckshaft needs machining.

@PoorManMods 3 жыл бұрын

We had to pull and rebuild the engine. The crank was slightly bent from the knocking and the rod was damaged too.