Originally Posted By: Samilcar
I was originally going to get a Gates serpentine belt for my wife's car, but decided to try one of Dayco's W belts solely because of the quality of this Q&A. So far this new W belt has silenced the chirp that the old OE belt(70,000 miles)had.
Speaking of your chirp, there are some good diagnosis videos on Dayco's site detailing the cause of certain noises, and how to fix them. Maybe you should look into it to make sure the noise stays gone.