Recently an annoying squeak began under the hood, coming from the serpentine belt area. I had all the worn belts replaced, and the mechanic (who I know and trust) replaced some bearings. While the squeaking is less, and even stopped for a little while, it is back again. Is there anything I can do to stop this that doesn't require me taking it back to the shop for more work that may or may not fix the problem? Thanks for any help

 

We had the same thing on our 1993. Ended up having to replace all the bearings. It still comes back from time to time, particularly when it is cold.

 

I had this on a vehicle the other day, Just used a wire brush and lightly touched the belt on both sides while it was running. Took the squeak right out. Gets all the grease and crap off the belt.