What Does Engine Knock /Rod Knock Noise Sound Like? - Watch and Listen!

Listen to what an engine knock/rod knock sounds like on any combustion engine.
The difference between an engine knock and a valve train noise is the speed of the sound and location.
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[@itzfraggle9620]

Just that simple noise, is the very reason I know how to rebuild engines now from the ground up. That rattling was the inception of my new found hobby. fixing cars.

[@Motorcarnut]

That’s great

[@blake9358]

Big end bearing worn

[@israelrodriguez6986]

That is so cool

[@markthompson1301]

Maybe you can tell me what's wrong with my car mine is throwing a po420 code I already replaced the o2 sensors and cadyaic converter still a check engine light and still a po420 code it has a tick sound not a knock but a tick sound I hope you can tell me. I think it's the fule injectors but not sure. It's a 2011 buick lacrosse cxl 3.6l v6 please help me. I haven't had this car that long I bought this car for $10.000 I have nothing but trouble can you help me

[@adcraziness1501]

The reason I started working on cars is because I couldn't afford to take it to the shop.

[@benjaminthomas2626]

Thank you, someone who actually explains the noise and what to listen for when diagnosing what.

[@Motorcarnut]

Thank you for the feedback! Appreciated

[@thethespianx9185]

I have such terrible anxiety about this happening to my car because it's so costly to fix. I appreciate the video being so quick and too the point, now I can come back when I'm being paranoid 😂

[@Motorcarnut]

Lol, don’t worry. Just maintain your oil and level and you will be fine.

[@ChristianMartinez-pc7dn]

My car developed a rod knock at 300k miles. Been driving like that for a year and a half, 700 miles every week. I comute 2 hours to work each way. At first the knock was noticeable while taking off from a stop. Now i can hear it at all times very subtly, almost not noticeable. My car has 370k miles now. Got a new engine ready to install. My car is a honda accord.

[@Motorcarnut]

I doubt very much that you had a rod knock, car wouldn’t last an hour let alone a year and a half, makes no difference which vehicle manufacturer.Probably had detonation which can sound similar.

[@thethespianx9185]

@motorcarnut Follow up question! Will this be audible at high speeds? Like could I hear the knock over the engine sounds on the highway?

[@Motorcarnut]

Yes

[@Rage308]

Thank you! Straight to the point and told me what I needed to know!

[@Motorcarnut]

Thanks, That's my whole point with my channel.

[@abubakarhassan6926]

Mine was caused by a weak oil pump. Didn't detect the pump cause I was running it in town and not much stress. But one time, I went racing against a Mercedes C class and stressed the engine, stopped, and heard the engine making noise like you explained. Changed the crankshaft, one connecting rod, and all the bearings main and rods. Now runs like new

[@Motorcarnut]

Great! Thanks exactly what I repaired on that car in the video.

[@mochissin84m84]

how much was all that in dollars ?

[@abubakarhassan6926]

@@mochissin84m84 roughly about $150

[@abubakarhassan6926]

@mochissin84 M the crank was salvaged but neat condition

[@jamesbriggs6364]

​@@mochissin84m84 😂😂😂

[@wolfgangdallmann943]

Short and sweet...exactly the info that I was looking for. Thank you for this info..

[@Motorcarnut]

No problem thanks for the comment!

[@blazeandcyrus]

great video, plain, factual, straight forward, instant sub, thanks

[@Motorcarnut]

Thank you I appreciate it

[@47umerfarooq]

straight to the point and precise what you need to know , thanks

[@Motorcarnut]

No problem, thanks for the comment

[@jonathanluis4966]

Changed my spark plugs today after what seemed like a misfire earlier. while listening to the engine I heard what sounded what sounded like rattling with the hood up. First thing that came to mind was a potential knock, not knowing what an engine knock sounds like. This reassured me it was definitely not an engine knock but something just moving around or working. thanks for the video nice and short and straight to the point.

[@Motorcarnut]

No problem! Thanks for the comment!

[@itzfraggle9620]

could be your lifters, or injectors. (injectors can be super clicky sounding, and its normal) If its your lifters or lash adjusters depending on the engine type this can also be normal, but if its like super loud, you might want to look into it.

[@sasquatchrosefarts]

Misfire can be caused by almost any electrical component related to ignition. Especially all the ground bolts, and wiring harnesses. And airflow and pressure sensor,.and O2 sensors. The spark plug gets dirty, but so does every connection on the vehicle.

[@sugarnads]

Bearings.

[@caseytilley9260]

About the same description with what happened to my TJ. Had a misfire when I changed all six spark plugs. Ran the code and had two cylinder misfires in 3 and 4. I swear, all I did was change the plugs out of cylinders 1 and 2 with 3 and 4 and vice versa. That "knock" went away. Not sure exactly what it could have been.

[@peterjohnson9438]

Good video, straight to the point, thank you for this. My engine (transverse DOHC V6, with timing belt to the exhaust cams, and intake and exhaust cams on each head linked by a chain) developed a pretty soft knock that starts once the engine gets up to temp and is almost unnoticeable at idle, audible at low RPM (800-1600 rpm or so) and then can't be heard after 3000 RPM, and it's decidedly at valvetrain pace. It got milder when swapping from 10W-40 to 5W-30, and got louder again once I added some "hydraulic lifter additive", leading me to suspect either something with the valvetrain itself or possibly a form of piston slap caused by gunked oil rings. Cracking open the front head revealed that I was missing(!) the lower chain guide for the cam chain on that head, and that the plastic surface on the remaining top guide had disintegrated. I wouldn't have even realized this was an issue until I found pieces of the plastic guide bit in the oil pan, and pulled up engine schematics to check how it's supposed to look. I've not yet examined the rear head. I've been fearing more substantial damage, but since this car is old but new to me, I suspect someone half-assed an engine overhaul at some point and left some parts out, giving me hope that the noise is just due to a problem with the chains and possibly some debris in a lifter. I've ordered a new set of chains and guides, and will be inspecting and cleaning all lifters and flushing with 0W-20 (and maybe a flush solution) in the hopes that the noise goes away and that the engine isn't on its way out. Again, thanks for this. You've given me some optimism. :) Edit: I also borescoped the cylinders to check for obvious burn marks or signs of valve impact, but I couldn't find anything of the sort.

[@Motorcarnut]

Hey no problem and good luck with the job. Chain and guides will probably fix it. How many other things can go wrong all at the same time? I don’t think so.

[@peterjohnson9438]

​@@Motorcarnut Thanks for the reply! I'm a pessimist by nature, I expect the worst :) Those chains and guides need fixing, but the noise could also come from the hydraulic timing belt tensioner, so swapping that out at the same time might well fix it. Cars are fun. I'm still at the phase where I'll throw parts at problems, then feel stupid when the issue that actually caused my concern turned out to be something simple and dumb.

[@Motorcarnut]

That’s where knowledge and experience come into play. But you got to start somewhere. Good luck!

[@BobbyISS]

I'm noticing the same issue. After buying my old car but new to me 2011 Chevy Impala. I notice on cold start ups here and there it makes a knock/ticking noise for a minute then goes away. If i rev the car to 3000rpm or above i can kinda hear somthing. Im scared and not sure what to do. The car runs fine and only has 58k miles clean title.

[@peterjohnson9438]

​@@BobbyISS the difference here is that my knock *started* when the engine warmed up, whereas yours ends once the engine gets warm. Most engines will resonate at some frequencies (2000 and 3000 are quite common), so if there's anything at all loose on there it might rattle. Some ticking at startup can also be caused by lifters/hydraulic lash adjusters having drained and not getting up to pressure until the oil flows freely. Sometimes fuel injectors will also get really noisy while still working well. I'd suggest you take it to a reliable mechanic and get them to listen to it (perhaps with a stethoscope) as it starts up, warms up and then as you rev it up and have them give you their opinion. As a follow up to my posts.. the car works now. Needed new chain guides and timing belt components (tensioner, idlers, water pump, belt) and fresh oil. I'm keeping an eye on the metal content in the oil, because there's still a chance that a bearing might be on its way out.

[@rosemarycampbell8547]

Thank you it’s exactly what my Toyota Coaster motor sounds like ..mechanic diagnostics implied immediately an injector problem . Quoted over $4,000 didn’t eliminate other problems . I was in tears very upset .Quoted on visual evidence only .As a novice to learning about motors So glad I found this video to learn from and made me more aware .

[@Motorcarnut]

No problem, thanks for the comment!

[@oouchiwally]

Hello. My car sounds exactly this as well. Did you ever find out what it was? Was it really an injector problem?

[@Motorcarnut]

Engine has to be replaced or rebuilt

[@israelrodriguez6986]

Straight to the point, the way I like it.

[@Motorcarnut]

Yes, Thanks for the comment!

[@terrencespeights2934]

Perfect expectations!! Thanks so much!!

[@Motorcarnut]

You're so welcome!

[@MrFishBlood]

I have long wondered how a knock would sound differently than an engine that runs rough for other reasons... Simple, now I know. Thank you!

[@Motorcarnut]

No problem! thanks for the comment.

[@markdougherty8933]

I can't tell if I'm knocking or just a ticking but when I rev it does not get worse, louder, or faster...I know thats not a diagnosis but thoughts?

[@Motorcarnut]

Could be the fuel injectors?

[@MrBojangles901]

Thank you for taking the time to make this video 👌

[@Motorcarnut]

You’re welcome! Appreciate the feedback

[@DerpyUniverse]

I can’t thank you enough, I recently noticed a ticking sound and was told it was knocking, thankfully I looked into it myself using this and a few other videos to find out it’s the valves

[@Motorcarnut]

No Problem! Glad it helped!

[@SuzannaMcGee]

Thank you! That's what I had this morning in my 2008 MIN Clubman S... at around 1,800 RPMs... when I shifted, it went away, but then again at around 1,800 RPMs. Five minutes later, when the engine was warmer, it went away. I just added 2 quarts of oil because it was really, really low. Great video for a female newbie :)

[@Motorcarnut]

Awesome! Hopefully you caught it in time, and thanks for the comment.

[@nickolus442034]

Female moment holy shit

[@ignotumperignotius630]

@@nickolus442034 could've happened to me, who gives a toss about oil since my daily driver is the last thing on my mind on the way to work.

[@rogergodin7525]

I was told my problem with 2.4 ecotec was the timing chains and guides,tensioner too, which I had done by a shop ,but I still have this noise which is double knock , which I believe as an old tech, rod noise either large or small end , great video , I think I’ll attempt popping out pistons in the driveway when weather permits ,thanks Roger I’ll keep you updated

[@Motorcarnut]

Thank you for the comment, I really appreciate it. You can drop the oil pan and check for play on the connecting rods.Yes keep me up dated

[@carsonac4163]

2.4 ecotecs are known for oil consumption. Some models were recalled

[@Motorcarnut]

@carsonac4163 this is true!

[@eazytoribio2695]

Straight to the point ❤ thanks, you sir have the gift 🎁 of a being a teacher a God given gift.

[@Motorcarnut]

Thank you! Really appreciate that!

[@merkov8715]

Thank you for this!

[@Motorcarnut]

My pleasure!

[@paulromsky9527]

Nice video. You describe the higher rate Main Connecting Rod Bearing Knock from severely worn bearings due to oil starvation and half rate Valve Knock from bad Lifters and Cam wear due to oil starvation as well. But you should include "Detonation" Knock (or Pinging) which is caused when the air/fuel mixture burns rapidly other than from the spark flame front (a smooth flame burn from the spark, and a rapid explosive burn spontaneously from another area in the cylinder - usually near a piston edge). That Knock is a bit more random and is a sharper in tone and duration. Pinging can lead to a hole being blown through the piston, the cylinder, the valves, head gasket, or even crack the head.

[@Motorcarnut]

Detonation is not in the same class as metal to metal knock but some that don’t know may think it is but that’s another video

[@matsudakodo]

@@Motorcarnut knock sensors are there to detect preignition and detonation

[@Motorcarnut]

Correct

[@jasoncoll9359]

Awesome video, I was so scared that I broke the engine

[@Motorcarnut]

Thank you!, that's what it's for, to compare.

[@sukoelpiucho]

Thanks a lot, great video!

[@Motorcarnut]

Glad you liked it! And thanks for the comment!

[@Daddymauch]

Thanks for the ad!

[@Motorcarnut]

Our pleasure!

[@ArifRahman-qv9iu]

FINALLY THE NOISE I NEEDED TO HEAR WHICH IS EXACTLY SAME AS MY ISSUE , BEEN SEARCHING OVER 1 MONTH ON YT FOR THIS NOISE :((( COULD YOU EXPLAIN WHAT IT COULD BE AS I DONT SEEM TO HAVE ANY LEAKS, MAYBE ENGINE MOUNTS?? many thanks in advance❤

[@Motorcarnut]

If it’s metal to metal like in my video, the engine has to be rebuilt or replaced

[@ruthlesslayerdaddy1002]

At first thank you so much for this video which I was looking for. Recently I bought a honda accord 2009 used car. I’ve checked with two mechanic before buying it. They said it is good also worth buying it. After 1 day the engine turned off in a parking lot. After some time the engine get started exactly the same sound from the above video we’ve faced. We tried to move it to the garage slowly the engine keeps getting off and also engine sign popped as well as high temperature and continuous sound. What do you prefer to rebuild or replace the engine might be a good option?

[@ruthlesslayerdaddy1002]

Actually we thinking of to change the engine (reconditioned engine with 2month guarantee) and the mechanic also suggesting the same cause it will work fine as new car.

[@Motorcarnut]

Sorry that you have to replace the engine after 1 day, the mechanics should of noticed something was wrong. I would take it to someone different to install new engine. Sometimes it’s better to rebuild the original one in the car but it can be more expensive sometimes. Well at least you will have a warranty. Good luck

[@natercarcater1397]

Hello Motorcarnut, thank you very much for your knowledge. I appreciate it, was very helpful. Be blessed.

[@Motorcarnut]

Thank very much! You as well. I appreciate you taking the time to comment!

[@autorepairsrbg]

Great advise!

[@Motorcarnut]

Thanks for watching!

[@M1keG23]

Good video any idea what my noise could be? It’s like a metal tick and sometimes vibration while ideling noise comes from engine / exhaust manifold loss of acceleration and terrible gas mileage. Thanks!

[@Motorcarnut]

Hard to make an assumption without hearing it but could be a valve train noise unless it sounds like the video than that’s bad

[@SavageBozysian]

I would say cats are bad

[@M1keG23]

@Quizahl mine personally is a exhaust leak

[@itstgthesmokingpegasus5416]

if you are driving a sports car or muscle car then you might be putting fuel that is too low octane for your car

[@tylermontano4891]

Lifter tick possibility??

[@borderless6575]

I've got a 2010 mitsubishi outlander 2.4L and there's a noise that changes with the rpm that kinda sounds like a diesel engine(best way to describe it), but only when cold. Once the engine heats up, the sound basically disappears. Btw, the sound was worse in winter when the engine was very cold.

[@Motorcarnut]

Could be piston slap, Subarus are known for that. As the engine heat up metal expands that's why you don't hear it when hot.

[@borderless6575]

@@Motorcarnut I don't have a Subaru, it's a 2010 outlander, but is piston slap bad?

[@Motorcarnut]

I know you don’t was just saying. Yes as it will only get worse but you should have a mechanic local check it out first to be sure.

[@borderless6575]

@@Motorcarnut ok cool thank you for the help:)

[@eunicejames5533]

My car just started this tool it for them to get it read my paper work says down stream 92 sensor and the camshaft timing by 01 oxygen my car is a 2913 Hyundai sonata

[@TylertheMiller]

Fastest sub I've ever made, awesome video. Thanks man!

[@Motorcarnut]

Thank you bro for taking the time to comment!!!

[@TheSergio1021]

Informative and to the point. Great vid

[@Motorcarnut]

Appreciate it!

[@yellowspike3344]

Thanks, i have a kia, known for burning oil. Figured it was low oil because it'll stop making the noise when i add more oil. To prevent this I just add oil near the max capacity so by the time i add more it'll still be above minimum oil capacity. Took me a little while to figure it out because the noise would happen randomly when i accelerate 25% of the time and it'll only last half a sec or so.

[@Motorcarnut]

Thank you! Little by little the engine is getting worse, should have someone check it out before you lose the engine.

[@scott4172]

So much room to work in that engine compartment! Looks like a 2004-2007(8) Malibu or Malibu Classic? The 2.2 Ecotec is a pretty robust engine,.

[@Motorcarnut]

Malibu

[@zyxzyx3030]

Robust?

[@christinaabalos3147]

Thank you, this is a very helpful information for beginners. :)

[@Motorcarnut]

Glad it was helpful! Thanks

[@mikeoutdoors4729]

Excellent explanation there

[@Motorcarnut]

Thank you

[@harshitrathod6829]

Hey! Thanks for the video.. my car started having this yesterday and kept it aside. Knocking syncs with the revs what is the best way to get rid?

[@Motorcarnut]

Welcome! A rebuild or replacement of the engine. Engine knock like in my video is the connecting rod bearing and the crankshaft journal play do to lack of oil and destroyed the bearing creating metal to metal contact ( engine knock)

[@zabgervais277]

How to fixt it , as it happened to my tuck as well. thanks

[@fccoz8348]

@@Motorcarnut can this be caused by a bad timing chain replacement

[@Motorcarnut]

Not really, most offen it’s low or no oil or pressure.

[@olusegunmichealolayemi3332]

@@Motorcarnut Can I just replace the connecting rod bearing and the crankshaft?

[@ohjvstin7785]

I have this issue. I have a 02 Town and Country 3.8L 107k miles. Just started hearing in the last two weeks. Got a oil change, it needed it but the noise consists. It does it a start, a little at idle and more as I accelerate.

[@Motorcarnut]

Engine would have to be rebuilt or replaced. No quick fix I’m afraid.

[@fccoz8348]

@@Motorcarnut i have this issue on my eco boost after i took it to mechanic for a timing chain replacement. Help!!

[@Motorcarnut]

I can’t answer for what someone else could of done. You should bring it back to them if they touched anything that has to do with oil pressure or the oil pump.

[@fccoz8348]

@@Motorcarnut all i know is i took my truck in without any knocking noise and then after 3 weeks they call me to tell me there is a knocking noise coming from the engine. I’m $4000 out of pocket and left with a ruined engine. I’d really appreciate if you could give me some advice.

[@Motorcarnut]

What did you bring the truck in for? What was wrong with it?

[@suhaizibongsu8892]

Good explanation just save my time. Thank you sir.

[@Motorcarnut]

No problem! Happy to help

[@onyx0076]

I like your knowledge thanx for sharing it

[@Motorcarnut]

It's my pleasure!

[@anuyahtravels]

Hey MotarCarNut! My 2017 Hyundai Elantra SE started making this same exact sound about a few days ago. I’ve had diagnostics run on it twice already, no codes pop up. No engine light either. My car doesn’t wanna excel past 2,000 RPM’s and you guest ticking the whole time, whether I’m driving 10 mph or 40pmh. Car then stalls out here and there during hard turns or turns in general. Funny thing is, I’m still 1,300 miles early for a new oil change. You have an ideas? I feel like it’s oil related but I’m lost 😢

[@Motorcarnut]

Those engines are known for crankshaft failure and Hyundai will replace the engine for free if its under 120k miles, I’ve rebuilt many that were out of warranty, just a heads up!

[@anuyahtravels]

@@Motorcarnut Yeah it must be that because I’ve already had issues related to the camshaft under code P0017. It’s crazy man. This is a 2017 with only 60k miles and I’m the second owner since 11,000 miles. I’m getting it fixed this week and after that, I’m completely done with Hyundai’s forever. Thanks for the love man! All the way from Boston, MA! Shalom 💫

[@Motorcarnut]

No problem, You too bro! Thanks!

[@anuyahtravels]

@@Motorcarnut it was an oil change needed haha that’s all thank you once again!

[@Motorcarnut]

Awesome! That’s great. Keep up on the oil changes, it’s the best defence on keeping the repair bills down

[@genesislucas9502]

My engine sounds same to you. What should I do? Do I need to change Manifold intake? Or IMRC or the lifter or any idea? But sometimes not so loud when running. Give me some ideas. I have a video too, i want to send to you.

[@Motorcarnut]

If it does the engine is blown and needs rebuild or replaced. That sound is Not a lifter noise.

[@genesislucas9502]

@@Motorcarnut is there any oil additives that can reduce the sound?

[@Motorcarnut]

Not metal to metal knock.No

[@LilTemha]

Id recommend trashing the car get a new one with regular oil changes. Not worth time to change engine on a meh car

[@Motorcarnut]

Probably for the average person, yes. I bought it like that and fix it and made $3000 in profit.

[@colton2307]

Beautifuly explained!!!

[@Motorcarnut]

Thank you! Really appreciate the comment

[@borneoaxiadriver]

Nice! Thanks!

[@Motorcarnut]

Welcome!

[@davidlong1503]

Mine made similar sound, but, it only does that once car is running for like 10 minutes. Also, that sound seems to mostly go away when rpm is over 3000. Any idea what it could be? It’s going to mechanic in a few days, but, I’m curious now

[@Motorcarnut]

Low oil pressure

[@vimaljohnson]

Are u sure? I also have same issue only after engine get heated. But my oil level seems to be within limits.

[@user-ru7he6qj2w]

I have heard maybe it is piston slap. Once it warms up it goes away. Not sure if that’s true thoufh

[@Motorcarnut]

That’s very possible

[@yung_megafone]

I had an ecotech with really bad lifter tick. I thought it was knocking up until I watched this, now I wish I didn't sell that car Great video nevertheless, keep up the good work and content

[@Motorcarnut]

Thank you, I really appreciate it!

[@royalroots4125]

What year ?

[@yung_megafone]

@@royalroots4125 2005 LS with the 2.2L4 with 95k on the dash

[@terrapinflyer273]

AWW! Sorry for your loss. Trying to figure out if my engine ticking is a lifter or fuel pump issue here.

[@yung_megafone]

@@terrapinflyer273 My best advice is to get a precision stethoscope and poke around seeing if you can hear the sounds in different areas. Your fuel injectors will click while they are running, you should only really hear the fuel pump near the rear of the vehicle

[@crazyforcrotchet]

Great video!!! Thank you

[@Motorcarnut]

Thank you for the feedback, appreciate it!

[@matoflynn]

Awesome explanation, thanks

[@Motorcarnut]

No problem, thank you for the comment!.

[@TyePriceless]

I have a 2020 Toyota Corolla with 41,000 miles on it. On my way home from work about a week ago I ran over an object that destroyed my upper and lower oil pan. I took it to the dealership to get this diagnostic. What they wanted to replace it was something I couldn’t afford at the moment. So I took my car to a local shop to get it done. The local shop J.B Weld the upper aluminum oil pan and replaced the lower oil pan with a new one. I get the car back and it’s make this exact sound from the video. My car has been saying low oil pressure off and no. Which I have told the local shop. They then tells me that I need a new engine, but this is damn near a brand new car. What should I do ?

[@Motorcarnut]

Why would the second shop fix the oil pan with a engine knock? The bottom half of the engine has to be rebuilt because of running out of oil.

[@K.v1n]

No warranty?

[@Motorcarnut]

Good question!

[@mojitocod]

Knock is also used to describe pre-ignition of the gasoline

[@Motorcarnut]

No it’s not. That’s detonation ( pinging sound) and completely different sound if you’re an automotive technician.

[@mojitocod]

@@Motorcarnut oh I guess my bad, not a native English speaker, thanks for explanation

[@Motorcarnut]

Sure, no problem

[@Stormnator]

@@Motorcarnut In German we also call premature ignition: knocking.. At least I thought so

[@Motorcarnut]

There’s a BIG difference between pre ignition detonation and physical metal to metal engine knock. One is a pinging sound and the other is a banging noise.

[@SaintIsidoreph]

Thank you Sir

[@Motorcarnut]

Most welcome!

[@Wutwut1n1]

Thank you 👏💯

[@Motorcarnut]

You’re welcome 😊 Thanks for the feedback

[@user-jn9km6qd7g]

A family member changed their own oil and didn't quite tighten up their cartridge filter all the way in their 2.4L Ecotec which caused a leak. After a week or so it was making some pretty nasty knocking noise, sounded like rod knock. I added about 4 quarts total of a mix of 5w-20, 5w-30, 10w-30, and 10w-40 that I had on hand just to get them on the road and the knock seems to have gone away completely. It's a tough little engine, I expected far less from a modern Chevy product.

[@Motorcarnut]

Glad to hear it worked out. It probably wasn't a metal to metal rod knock because damage would be done and adding oil would not save it. Probably was the valve train.

[@user-jn9km6qd7g]

@@Motorcarnut The knock was intermittent, which was odd. It went away at higher speed, but was loud as hell at lower speeds, say, under 30 mph. A quart of 5w-30 and a quart of 10w-40 got us 30 minutes back home with no noise. Oil light never came on, which was concerning. Engine light did, though. Should we be concerned about valve train damage or any other damage?

[@Motorcarnut]

I would have the car looked over by a mechanic just to have some peace of mind.

[@user-jn9km6qd7g]

@@Motorcarnut It's a cheap Chevy car. It's probably not worth the cost of them cracking it open.

[@Justin-jd8uq]

@@user-jn9km6qd7g exactly what was happening to my car I added oil and gunna get oil change before I drive it again , did anything ever come from it or was it fine

[@TPHB5011]

Everyone is telling me my engine is fucked cause it's ticking when idle but it's fine when driving?

[@Motorcarnut]

What do you mean ticking? If it sounds like the noise in the video then you got a problem.

[@oreqqy9417]

Same thing happens with me, but it’s not crazy loud

[@Motorcarnut]

That’s not good, also can be piston slap Subaru’s are known for it.

[@oreqqy9417]

@@Motorcarnut I have an Infiniti. It only does it sometimes. I’ll drive and it’ll be silent, but when I come to a stop there’s a subtle rattle. It sounds like the front right speaker is blown almost, that kind of noise. But I turn the radio off and it’s still there, so not sure

[@Motorcarnut]

Could be your oil pump or pressure starting to go

[@eltots]

Thank you for this video. I have a similar deep noise on my engine when cold, except it's more muffled (sounding like a diesel engine) and becomes less noticeable as the car comes to operating temperature. I'm hesitating between rod knock and piston slap...

[@Motorcarnut]

You’re welcome, well can be piston slap because as the pistons get hot they expand and in turn make less noise. Rod knock when it’s not that bad is the opposite because the oil is thicker when cold and therefore less noticeable when cold.

[@exceptionallyaveragejoe]

An excellent video and explanation

[@Motorcarnut]

Thank you! I appreciate that very much!

[@dannyr333]

Thank yOu very much dude-

[@Motorcarnut]

No problem

[@fredzag2452]

If the engine is quiet when running is a great sign that it's a good engine. If the engine makes a clicking sound and your told they sound like that when warning up don't believe it. Thanks for the video on this subject. Didn't know it sounded like that, but the engine was pretty noisey.

[@Motorcarnut]

Thank you and correct! Engines do have some light clicking ticking noises from fuel injectors, high pressure fuel pump etc. but should never be like the engine in the video which was blown.

[@vusindlovu8897]

Brilliant👌

[@Motorcarnut]

Thank you!

[@cali-ridazridaz3526]

great video thankssss

[@Motorcarnut]

Glad you enjoyed it

[@Frosted.7]

Good info!

[@Motorcarnut]

Thank you

[@tsungaibishop1205]

U deserve a like my man

[@Motorcarnut]

Thank you ,appreciate the feedback!

[@muhammadhanif9533]

W❤nderful teaching ability.

[@Motorcarnut]

Thank you! I appreciate your feedback!

[@Robenson321]

Informative.

[@Motorcarnut]

Appreciated

[@HikikomoriDev]

Sounds quite powerful.

[@Motorcarnut]

In a bad way unfortunately

[@scar4892]

Thank you

[@Motorcarnut]

No problem

[@froggert119]

Thanks so much

[@Motorcarnut]

You're welcome!

[@jeremycassin6799]

Good knowledge

[@Motorcarnut]

Thanks!

[@darrensmith9407]

Sounds like the engine is saying "Help me!" * good, short and to the point video 👍

[@Motorcarnut]

Thanks!

[@sbcandmagnum]

good advice

[@Motorcarnut]

Glad you liked it, Thanks

[@stevendowdy11]

Guy you really sounds very knowledgeable. My 05 Lincoln aviator 4.6 and has a new knocking sound. More sounded like a converter shield but that’s been eliminated. It’s def in the motor. Any idea where to start

[@Motorcarnut]

Thank you for the comment! Yes, if possible drop the oil pan and see which rod spun the bearing and how bad it is. Sometimes you can get away with just polishing up the crank journal and replace the bearings but that’s usually rare. Most of the times if a rod didn’t poke through the block you’ll end up replacing the crankshaft which ever rod that failed and all main and rod bearings.

[@RealTalkWithMitch]

My car sounds the same idle but not when revving. You have helped my worries. Something is wrong top end then haha

[@Motorcarnut]

No problem, good luck!

[@madcat4563]

I like your accent. I was still unsure about the engine knock, but on idle, I could hear something sounded wrong.

[@Motorcarnut]

Thank you.

[@coachsggTTV]

Thanks for the video, my 2001 tacomas been making a knocking noise only when it’s put in gear. It doesn’t knock in park/neutral.

[@Motorcarnut]

Got to make sure it’s not an accessory pulley first but rod knocking does start out slow too sometimes so I’d look into soon before more damage occurs.

[@b4ph0m3tdk9]

That was pretty clear.

[@Motorcarnut]

Thank you!

[@kennethwalters8463]

Man you explain that so well thank you. I have a question My car needs a tune up but I haven't had the money to have it done and so I've been driving it anyway for the past 3 weeks and it has only recently began to make a knocking sound... Is it dangerous to keep driving it

[@Motorcarnut]

Unfortunately, yes. If it were just running a little rough I’d say that’s ok but not knocking. Have at least a local mechanic just give a listen to see if in fact it is knocking, if it’s something else then probably could still drive it. Hope that helps.

[@carlodonnell146]

I had a bearing knock in my dodge ram v8, and It was coming from the right side rear oil pan area but it wasnt as loud as yours; yours is further advanced than mine was, or it has something to do with the kind of engine it is; right away I supected the bearings, and I recently replaced them. They are worn but I caught them at a good point and only the lead was worn off, so I cleaned the journals and replaced them one at a time from under the the engine; if it is left too long then the crankshaft may need to be removed.....

[@Motorcarnut]

Yep, sounds like you caught yours just in time and saves yourself a ton of extra money and work, good job!

[@HiFiInsider]

my 2013 Elantra GT has a slight knocking sound after an overnight rest on cold start. It goes away after warm up. It has 63K miles. Recall vin look up returns with no results on my VIN. Your thoughts? Should I have dealer inspect when they do the next oil change?

[@Motorcarnut]

Yes, because it’s the same engine in the recall and will seize soon. They must fix it for free if you took care of any of the letters they sent you.

[@HiFiInsider]

@@Motorcarnut oddly I did not receive any notification in the mail on this and the VIN search on Hyundai website returns with no recalls.

[@Motorcarnut]

@HiFiInsider they do that on purpose I swear

[@kiantebaker9020]

Good video

[@Motorcarnut]

Thank you!

[@DVincentW]

Oil starvation? Damn! Good advice good sir.

[@Motorcarnut]

Thank you and thanks for the comment!

[@malalford]

My '98 subi has cold start tick. The service light would come on intermittently (causing limp mode). My (provisional licence) son bought it home on Friday sounding like this. I was sure it was headed for the scrap yard. Turns out, it was actually a hole in the exhaust (i had replaced 6 years ago). Mechanic sent it out for welding = $250 fix. Hopefully it fixes the sticky Speedo too, lol. I'd be happy if it lasts another year, while my youngest son gets his xp up.

[@Motorcarnut]

Watch out for head gasket problems too

[@xttocx]

I'm buying a car tomorrow, thanks very much for this, most appreciated.

[@Motorcarnut]

No problem, good luck!

[@rumirumarr6452]

Would like to know, I have a 2012 Lincoln MKS 3.7lb engine vehicle that while the timing chain was on I put cam holders on and turned the crankshaft counter clockwise to get the old crankshaft bolt off. When I did it made a ratcheting sound and immediately stopped. Wasn’t sure what it was and thought the cam holders would hold all shafts in time because chains were all on, but when I was thinking about it I was thinking is it possible that the secondary ( small) timing chain jumped a tooth when testing to rotate backwards? I was thinking this was possible but not sure and did so much work didn’t want to put it back together in total before I know if I either messed something up or messed the timing up and need to take everything off and reduce all the timing?

[@Motorcarnut]

You probably did jump timing, you’re never supposed to turn the crankshaft in the other direction of normal rotation for that reason, when you do you compress the tensioner and that’s when chain will jump. That ratcheting sound was probably that.

[@mallorycainjr.1921]

Not sure if you'll see this question but I had this same noise after a Mechanic did my head gaskets. Not sure if I even needed headgaskets I just offered to do them since I had the money. Had smoke coming out of tail pipe when turning from a full stop hitting the gas. I would have to lay off the gas then continue for it to go. But my mechanic worked on my 02 chevy impala v6 3.8 I told him to replace my head gaskets. He had my car for a while and the night he put the engine back together he cranked it up for me. It sounded so smooth like butter. 2 days later (kept car to put on the egr valve) it was knocking like this I was losing oil pressure and everything. To this day I do not know what warranted this kind of behavior. The guy was a family member of mine and he used to be a heavy drinker. I remember he said he drove 30 minutes away and back after I heard it crank up that night. Heads got machined and everything. I wonder if maybe he was drunk and floored it too hard and broke the bottom end. Or if he just misplaced something or didn't torque anything down? I wonder in my situation where it just fails out of nowhere what could have happened? I have the video of the sound on my KZbin channel

[@Motorcarnut]

Wow, It's hard to predict what he could of done wrong. Maybe he didn't change or check engine oil that could of been low and caused the knock and then put oil in it when he realized it and it was too late? IDK. I actually have a video on that engine's head gasket replacement and there is no valve timing to mess up to cause that problem as well. So had to be low or no oil IMO. Unless the noise you here is not an engine knock?

[@W.Khairi]

Poor little ecotec, God job man

[@Motorcarnut]

Thank you!

[@michaelgebremeskel6622]

I like it ☺️ good job man.

[@Motorcarnut]

Thanks bro

[@Saywhatohno]

Thanks for this but I have heard it could be the bad AC compressor as well? and how much is the cost to fix the bearing and crank shaft? some people are saying I might as well scrap the car when I hear this sound lol not sure how much of that is true?

[@Motorcarnut]

Vehicles make all kinds of noises but an engine knock is distinctly different as it’s sounds loud metal to metal and engine won’t last much longer. It’s a big job to replace the parts that failed so depending on the vehicles worth that would decide weather to fix the vehicle or not.

[@ADude846]

Had to replace the engine in my car because of this. Great times.

[@Motorcarnut]

Sorry to hear that

[@tank6469]

Thanks for the video.. my car starting making this sound couple days ago every time I accelerate it ticks faster and today was the first time my Camry turned off on me multiple times.. can what you just explained in this video make make the car turn off as well?

[@Motorcarnut]

Yes and worse, sieze.

[@roxannecab]

Thank you! Quick question…. If I have a 2002 Toyota Camry that I know needs a new oil pump and I fix that problem, would it cause that knocking sound to go away???

[@Motorcarnut]

If damage didn’t already occur, yes.

[@dwsherm1]

I have this 2.2 in my 07 Saturn Vue. Has 112k miles and I've probably spent about 1k since new on repairs. Runs and looks like new and I think it's a gteat engine.

[@Motorcarnut]

They are just don’t let you oil level go below the minimum mark like this owner did and you’ll be fine.

[@theaussienurseflipper.8113]

Great video mate my son's car it's got like a very quite knocking sound which is intermediate and it goes fast if you rev it but it's not doing it all the time any udea ideas thx Graham

[@Motorcarnut]

Thank you! But don’t know what vehicle you have?

[@theaussienurseflipper.8113]

@@Motorcarnut Holden 5litre V8 GM

[@Motorcarnut]

Can be a rod knock, can you post a video on KZbin and I can give a listen

[@white_dragoon_x]

Thank you now i know the noises im hearing from my car isnt this. I do have a slight oil leak because the oil dipstick tube has come loose but i put oil in it when the oil pressure drops below 40 when idling. I definently have to get it fixed though because its at least once a month i have to add oil. I cant trust the dipstick because i dont know if its even going completely into the oilpan or not or how far disconnected it is and im not a mechanic and dont want to try to attempt a fix i have no idea on how to do.

[@Motorcarnut]

You’re welcome! Good luck

[@jaymondsampson3525]

@motorcarnut my sister has a 2013 ford escape that's doing this exact thing. Is there a way you can tell me what needs to be done to fix it? Can a person do it themselves or is it internal work? And also it was something said about the coolant bypass vavle. The car is leaking oil and i know it says the coolant bypass valve being bad will cause your oil to leak. And you said the engine knocking could come from oil leaking and other oil related problems. Do you think replacing the coolant bypass valve would fix the knocking problem?

[@Motorcarnut]

Can you send me a video of the noise so I can give a listen? Post it on your channel. If it’s like in my video, it would require a engine rebuild and if you’re not mechanically inclined and have the proper tools it can be expensive. Coolant leak can’t cause knock but if the vehicle overheated bad it could.

[@Iouisvuitton]

Hey man thanks so much for this video, my car sounds like it’s knocking when I turn the engine off after a 5mile+ drive, do you know what it could be? I thought it could just be the fan been loud but doesn’t seem viable

[@Motorcarnut]

No problem! Thanks for the feedback. After the engine is off? Metal does expand and contract and does make some noise but I don’t know what you’re hearing? Electric fans and water do operate when vehicle is off but nothing that sounds like an engine knock.

[@Chris-uw2yf]

Hi motorcarnut, I've been having a light tapping noise only when engine is warm on a 2020 Honda HRV 1.8L engine with CVT (14k miles). Noise is heard only in drive, reverse when accelerating slowly, specially between 1000 and 1400 rpm. No noise at idle. Changed spark plugs, engine oil was clean, all levels good. Also I've read in several forums that a lot of people have had this noise from 0 miles. And that honda and dealerships have told them that it's normal. Is not the sound of ticking, it's a tapping noise behind the ticking, it's not loud, but once you hear it you can't forget about it. I have a video of it in my youtube channel and also made a playlist of sounds that are similar. Can you please hear them and maybe tell if in fact it's just a normal noise or something to be afraid of? Have had many mechanics listen to it, the first said that it could be the tensioner and that most Honda's make that noise, that it can't be rod knock sin the car only has 15k miles and hasn't been abused. Another said it could be a motor mount since he used a stethoscope and the tapping noise was heard loudly in the left motor mount but it doesn't have any leaks... could it be the hpfp or just a rythmic resonating noise? No CEL's, no performance loss... i just want to make sure nothing is wrong with my car. I've driving it with that noise for more than 10k miles without getting worse.

[@Motorcarnut]

Hey, I just listened to that noise. What I would do is take the serpentine belt off to rule out a pulley, tensioner or bearing noise, and see if you still hear that noise, if you do, it's an engine knock. The speed of the sound means it's the crankshaft not the camshaft as the crank spins faster than the camshaft. That noise IS NOT normal. How can the dealer mechanic not hear that. Take the car back before it gets worse and they blame you!

[@angelyseking3727]

Iv literally been watching all types of videos to try to figure out what’s wrong with my car 😩 & I feel this may be the closest orrrrr 😅 a timing belt issue I’m so lost but this video was right to the point and easy to understand

[@Motorcarnut]

Thank you! If you can post a video of the engine noise here I can give a listen

[@angelyseking3727]

@@Motorcarnut I’m not sure on how I can do it through the comments, but if you have Facebook or Instagram or feel comfortable giving your number I would definitely send a video, because I’m so lost and honestly this is the only video that gave me some sort of direction! Thank you for responding as well.

[@christopheramberg7365]

@@angelyseking3727 what was the outcome of this situation? I also am in this predicament between timing and bearing. Thanks

[@cynical-4649]

This kind of knocking developed on my jaguar xe 20d and would increase in frequency when accelerating- but the noise would completely stop once the engine heated up. I had read some posts of people saying if it goes away when the engine heats up then dont worry. Well, rip my 20d after 140,000 miles almost 😢, i took it to the dealership to figure out what it is and they suspect its an engine bearing, which it does sound similar to this.

[@Motorcarnut]

Sounds like that to me as well. Rod knock

[@cynical-4649]

@@Motorcarnut kzbin.infoawtIaoWIa-w?si=3M2fsFSBSUOvbU4I example here for easier reference. Rod knock yea?

[@hypemsm5883]

your a legend im only 17 and know nothing about cars and my first car started to make this noise and it keeps getting louder so no im really happy i found it out but noe i got to get a new motor lol ffs

[@Motorcarnut]

Thanks , and sorry to hear that. Wish you saw video before buying the car.

[@rickr.mortis4821]

I've heard that sad sound a few times from a few old clunkers I had in the past. The boneyard is close at hand.

[@Motorcarnut]

Not newer cars with lower miles they are worth fixing

[@Motorcarnut]

Not newer cars with lower miles they are worth fixing