Why does a serpentine belt keep breaking?
Why does a serpentine belt keep breaking? Serpentine belt problems usually result from one of three causes: a defective belt tensioner; misalignment of a pulley; or, defective bearings in the tensioner, idler, or one of accessories driven by the belt (including the water pump). Excessive cracking: Other than severe old age, defective tensioner. Can a bad belt tensioner cause a car to break? In more severe instances, a bad tensioner pulley can cause the drive belt to break. Since the belt tensioner keeps the proper spinning of the drive belts in the car’s engine, certain components or accessories may fail...