Belt Tension
Vehicles are equipped with automatic drive belt tensioner. Drive belt does not require adjustment. Inspect condition and tension of generator drive belt prior to performing any on-vehicle charging system tests. Tensioner has an indicator mark and MIN/MAX gauge. See Fig 1. Drive belt is worn, incorrect drive belt has been installed or tensioner is faulty if indicator mark is not between MIN and MAX. Replace belt and/or repair tensioner mechanism if necessary.