Engine chatter

[99BlackW68]

I'm getting some significant engine chatter that I can hear when the hood is shut. It sounded like maybe one of the pulleys was going out, but I took the serpentine belt off and fired the car up for a couple seconds and still heard the sound so its not any of the pulleys, so it must be internal noise. What could cause a chattering noise like this? Thanks

[vr4gasm]

Re: Engine chatter

idle, rev, under a load? when does it make the noise does it get louder or faster with rpms?

[99BlackW68]

Re: Engine chatter

sorry, the noise is at idle

[3.4grapeofwrath]

Re: Engine chatter

I'm getting some significant engine chatter that I can hear when the hood is shut. It sounded like maybe one of the pulleys was going out, but I took the serpentine belt off and fired the car up for a couple seconds and still heard the sound so its not any of the pulleys, so it must be internal noise. What could cause a chattering noise like this? Thanks

Does the sound go away when the hood is opened?

[ssms5411]

Re: Engine chatter

bad crank balancer, Hows your oil? what side of the engine is it? How many miles on your car?

[Rob Bell]

Re: Engine chatter

It could be any pulley under there. Try using a piece of hose or a mechanic's stethoscope to listen around and pinpoint the noise.

[Barbadian Camaro]

Re: Engine chatter

Try listening to it with the clutch press in to see if it goes away

[whitdog54]

Re: Engine chatter

Sticky lifter? haha

[99BlackW68]

Re: Engine chatter

its an automatic, i cant tell which side of the engine its comming from, i said i took the belt off and its still there so its not a pulley, the sound stays with the hood open, 86k on the car, the oil is fresh and is changed every 3000 miles.

any ideas guys?

[Choppers]

Re: Engine chatter

possibly a lifter. you'd have to see if one is collapsed

[99BlackW68]

Re: Engine chatter

yeah im thinking it is a lifter. its quite a bit of work to get to those though so....

[Choppers]

Re: Engine chatter

not really. i have one collapsed on mine but it goes away once it idles for 2 or 3 minutes.

[ssms5411]

Re: Engine chatter

Could be a dry rotted crank balancer, thouhgt mine was a rod at first but after taking the belt off and doing some research it was my balancer that had dry rotted from the inside and was out of wack, $100 later running smooth again.