Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/105/ad/serpentine-belt-tensioner Did you know that squealing belts or pulleys may actually be the result of a bad belt tensioner? Check out this video where Len shows you how to identify a bad belt tensioner, and also discusses how improper belt tension can lead to worn pulley bearings and belts! Check out more of our great diagnosis videos in this playlist!
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