I feel like a bonehead, Lately my 02 has been making sqeaking/squealing sounds more and more as time goes by so I think ok its the serpentine belt. I removed and inspected it and it showed it's age so I replaced it, squeaking continues. I next inspect the tensioner pully and notice ( with the belt removed ) that it rolls freely for a few second so I removed and replaced it; squeaking continues.

I felt like a bonehead once I noticed that the A/C has a belt of its own so I figured I would replace that belt and once removed I noticed the tensioner pully has alot of play and rolls freely for more than a few seconds, so another trip to the auto parts store and removed and replaced it. Afterward I installed the new A/C belt amd the new serpentine belt and start my car......squeaks/squeals are GONE!

I thought the serpentine belt was for everything but this is not the case, the A/C has it's own. Four and a half hours and four trips to auto parts stores and my car purrs again. LOL

 

...good to hear that you found the source. The good news is all pulleys will not need replacing for a long time - three less things to worry about. How many miles are on your car?

 

I have about 101K on it Dave, just a weekend toy. Bought it in 05 with about 65K on it. Before that I had a 96 ( my first Vette ).