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Test Description

WARNING: This page is about a different car, the 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 3. This test is to verify that the noise is being caused by the accessory drive components. With the drive belt removed the water pump may not operate and the engine may overheat. Also DTCs may set when the engine is operated with the drive belt removed.
  2. 4. The inspection should include checking the drive belt tensioner and the drive belt idler pulley bearings. The drive belt 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 inspection and replacement procedure.
Fig 1: Drive Belt Whine Diagnosis
G01764018Courtesy of GENERAL MOTORS CORP.
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