you will see at least one serpentine belt. See thisphoto. There are cars with two or three belts; electric cars have no belts. The job of a serpentine belt is to drive accessories installed on your engine such as analternator, water pump and air conditioner compressor. ...
then it’s one of the signs of a bad idler pulley. The first thing you should do is replace it to prevent the engine belt from losing tension and slipping. Like any other component in the vehicle, the idler pulley surface is also worn ...
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