Express 3/4 Ton Van V8-4.8L VIN V (2003)
operate and the engine may overheat. Also diagnostic trouble codes (DTCs) may set when the engine is operated with the drive belt(s) removed.
4. This inspection should include checking the drive belt tensioner and the drive belt idler pulley bearings. The drive belt(s) may have to be installed
and the accessory drive components operated separately by varying their loads. Refer to the suspected accessory drive component for the proper
removal and installation procedure.
Steps 1 - 5
Drive Belt Whine Diagnosis
