GM Service Manual Online
For 1990-2009 cars only

Review the system operation in order to familiarize yourself with the system functions. Refer to Air Suspension Description and Operation .

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the air suspension. Refer to Checking Aftermarket Accessories .
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
    • Inspect for binding or damaged air springs.

Intermittent

Electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom

Refer to the Air Suspension Malfunction diagnostic procedure in order to diagnose the symptom.