fhp911

My '04 has developed a weird faint squeaking (or you could call it chirping) noise which is definitely associated with the engine (not the chassis) when I accelerate from low revs at medium to large throttle. After maybe 2500rpm the noise stops. (Possibly you can't hear it anymore because the engine is louder, but I do think it actually stops at the higher revs.)

It is NOT the pinging rattling sound associated with knocking, and I always use high-test gas.


Car has 40,000 miles.

Any ideas?

db_gt3

Could be your idle pulley starting to seize.

va122

agreed, check your belts too

fhp911

Just an FYI to close this topic.

It turned out to be a worn serpentine belt which was slipping at low revs

AllanJ

Thanks for the follow-up post.

Cheers,

enthusiast

+ 1

It really helps the community when one shares the solution.

sharkster

Going to say... sounded like belts as someone locally had that a while ago. I'd pretty much say change them on 04s or cars with 30 plus K on them now. Easy to do

KOAN

I had a very loud chirp which started just at start up, and became more constant. It was due to a loose spark plug. It is worth checking that out, and the repair can require a new head, if the threads strip. We checked the serpentine belt first, and it was not the culprit, in my case.

fhp911

So I think this one is wrapped up.

The Forum is GREAT!