What causes a serpentine belt to be out of alignment?
What causes a serpentine belt to be out of alignment? Angular misalignment—the pulley is at an angle to the other pulleys—results from worn bearings in an accessory. Belt tension on the pulley pulls the shaft off center, which puts that pulley out of alignment with the other pulleys. Pulley alignment can be checked with a straightedge. Place the straightedge across two pulley faces. How do you replace a serpentine belt pulley? Using the breaker bar or serpentine belt tool, move the tensioner arm against the spring as far as it will move, to its stop. The tensioner arm should move...