Metallic friction sound from Cavalier

noises
alternators

#1

Recently, I started driving a 97 Cavalier with 101,000 miles that had been, for the most part, parked for a year. Right away I noticed a constant metallic friction sound when the engine is running. I hate to call it a grinding sound as it doesn’t sound that loud, but that could be another way to possibly describe it. It does it whether the car is moving or not. I have listened closely under the hood and I think it may be coming from the alternator. Could there be a bearing going bad in the alternator? Or might it be something else turning with the belt, like the AC compressor? I do not remember it making teh sound before being parked last summer, so could something have happened during the last year to cause this?


#2

it could very well be the alt. or the belt tenioner.


#3

If the noise is coming from around the alternator I would suspect that the bearings of this are failing.

If you have a long screw driver, place the tip on the laternator and put you ear on the end of the handle, if it is the alternator you will clearly hear it then.