Anybody know anything about cars??(engine wise)

[TC2]

My jeep which has 55,000 miles on it, has started making this knocking noise.

I've always kept up on all oil changes.

Any ideas on what this noise is?? Should I be worried??

 

[swole]

Need more info.

Is the knock proportional to RPMs? Meaning the faster you go the knock gets faster? Or is it the same speed all the time?

Does it seem to be coming from the top or bottom of the motor?

Have you suddenly changed from using synthetic vs regular motor oil?

 

[TC2]

Need more info.

Is the knock proportional to RPMs? Meaning the faster you go the knock gets faster? Or is it the same speed all the time?

Does it seem to be coming from the top or bottom of the motor?

Have you suddenly changed from using synthetic vs regular motor oil?

Yeah the faster the rpm's the faster the knock once I accelerate past a certain speed I cant hear it at all though.

I actually hear it more in the cab then outside, no change in the motor oil.

 

[alien amp pharm]

Does it knock when you decelerate also?

Not saying this is the problem, but I had a 4X4 truck that made that sound when I accelerated and decelerated. It turned out to be the universal joint in the drive shaft. (up front near the engine end of it) It eventually broke after a couple months of knocking. It may be worth a try to crawl under there and look at it.

 

[chefbone]

U joints...........What year is it? I'm a Wrangler and CJ master!!!! The newer TJ's are a little beyond me.

Is the noise coming from underneath the the gear shift on the floor?

 

[TC2]

it's a 2000 Jeep Cherokee 2WD. automatic, 6 cylinder.

"Is the noise coming from underneath the the gear shift on the floor?"

Hard to tell, sounds almost like its coming from behind the dash.

 

[alien amp pharm]

Check the universal joints like the 2 intelligent people in this thread already stated you lazy ass.

 

[chefbone]

Check the universal joints like the 2 intelligent people in this thread already stated you lazy ass.

Good man you are aap.

 

[TC2]

Check the universal joints like the 2 intelligent people in this thread already stated you lazy ass.

Sure I'll get right on that right after I finsh my theory on Advanced Quantum Physics.

Like I know what the fuck a universal joint is or looks like.

 

[jrlex]

this is funny as shit trying to figure out via the internet what's wrong with someone's Jeep..

I've got a suggestion..take it to a mechanic..

 

[Razorguns]

American cars. 55k and already knocking noises in the engine. whatcha expect.

 

[chefbone]

It should be at the front of the drive shaft and transfer case

 

[alien amp pharm]

Sure I'll get right on that right after I finsh my theory on Advanced Quantum Physics.

Like I know what the fuck a universal joint is or looks like.

Drive shaft = that pole looking thingy that rotates to turn your rear wheels.

U-joint = the U shaped joint located on the ends of the drive shaft.

Pics =

 

[Deterass]

this is funny as shit trying to figure out via the internet what's wrong with someone's Jeep..

I've got a suggestion..take it to a mechanic..

It happens all the time.....although your prolly right about asking this on a fitness site.I've visited several automotive forums for my 4-runner and they are really helpful.

 

[resonator]

You could be leaking oil causing your engine to knock. Check your oil level before you drive it anywhere.

 

[HumorMe]

I think it being a Jeep is what's wrong with it.

 

[chefbone]

I think it being a Jeep is what's wrong with it.

I'll destroy you for saying that you bastard!!!!!

 

[HumorMe]

I'll destroy you for saying that you bastard!!!!!

I speak from experience.

 

[chefbone]

I speak from experience.

 

[Lumberg]

If you don't know what a u-joint is then take it to a mechanic already.

I've been a mechanic and I can't help you if you can't help yourself bro.

 

[theoak01]

could also be a lifter,which will suck

 

[RADAR]

Too Bad its not a genuine AMC then you wouldn't have that problem.


RADAR

 

[sublime35]

could also be a lifter,which will suck

that way my first thought or a broken valve spring. Doubt it's a rod bearing or broken cam cause that shit would be very loud and most likely won't go away at higher rpm's. Sounds to be like it could be low oil pressure like others suggested. But i'm no mechanic or expert, just what I know from experience.

 

[jrlex]

It happens all the time.....although your prolly right about asking this on a fitness site.I've visited several automotive forums for my 4-runner and they are really helpful.

True that..true that..

 

[Lumberg]

could also be a lifter,which will suck

Naw that would be a ticking sound, and would go away with either a thicker oil or higher engine rpms=higher oil pressure.

Could also be piston slap or rod knock, but honestly take it to a mechanic already! Sheesh!

 

[TC2]

American cars. 55k and already knocking noises in the engine. whatcha expect.

Seriously..I'm never buying an american car again.