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Hey guys, I have a 01 and I have noticed lately a rattling noise from the belt area, I know it is a pulley or AC Bearing. Any of you had this problem, I thinking it is a common problem. I only hear it at idle and it sounds just like an idler pulley. 24000 miles, very good condition!
The serpentine belt can, and does, set up a racket you'll swear has to have a metallic origin.
Belt spray is crap, however, buy a can and lightly spray the belts and see if it stops. If so replace both belts and be done with it. If the noise persists it could be the tensioner or harmonic balancer. If the noise persists no harm done with the belt spray you'll be removing the belts anyway and might as well replace them.