The serpentine belt in my truck came off.
This vehicle is equipped with an automatic belt tensioner. So, if the belt slid off while driving, either the tensioner is weak or the pulleys are out of alignment. Also, there could be oil leaking down onto the belt, or the belt may have been the wrong size. A trained professional, such as one from YourMechanic, will be able to look at your car and replace the serpentine belt if necessary.
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