fbpx

Squealing Serpentine Belt

Q: How do I stop my serpentine fan belt from squealing? It has gotten worse with colder weather. It will squeal going down the road with no extra load on engine.

A: A belt that is squeaking is caused by belt slippage. When a belt slips, the belt becomes glazed. I recommend changing the belt and possibly the belt tensioner. It is possible that the belt tensioner’s spring is weak.