GM Service Manual Online
For 1990-2009 cars only

Important: If you have not reviewed the Diagnostic Starting Point - Vibration Diagnosis and completed the Vibration Analysis tables as indicated, refer to Diagnostic Starting Point - Vibration Diagnosis and Correction BEFORE proceeding.

The diagnostic information contained in this Diagnostic Aids section will help you determine the correct course of action to take for the following 4 main conditions. Refer to the appropriate condition from this list:

    •  Vibration Diagnostic Aids - Vibration Intermittent or Not Duplicated
    •  Vibration Diagnostic Aids - Vibration Duplicated, Component Not Identified
    •  Vibration Diagnostic Aids - Vibration Duplicated, Difficult to Isolate/Balance Component
    •  Vibration Diagnostic Aids - Vibration Duplicated, Appears to Be Potential Operating Characteristic