GM Service Manual Online
For 1990-2009 cars only

Before beginning diagnosis, review the system description and operation in order to familiarize yourself with the system function. Refer to Propeller Shaft Description and Operation .

Classifying the Symptom

Propeller shaft symptoms can usually be classified into the following categories:

    • Noises
    • Vibrations

Noise related symptoms are diagnosed within the Propeller Shaft section. For vibration related symptoms, refer to Diagnostic Starting Point - Vibration Diagnosis and Correction for diagnosis.

Visual/Physical Inspection

    • Inspect the system for aftermarket devices which could affect the operation of the propeller shaft.
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

    •  Ping, Snap, or Click Noise
    •  Knock or Clunk Noise
    •  Scraping Noise
    •  Squeak Noise