GM Service Manual Online
For 1990-2009 cars only
    • If abnormal noise exists in the rear end, inspect for the following conditions:
       - The exhaust system contacts the underbody
       - Worn or damaged dual axis ball joint
       - Damaged strut or mountings
       - Worn or damaged rear toe link
       - Worn control arm bushings
       - Loose stabilizer shaft
       - Loose wheel nuts
       - Loose suspension mounting bolts
       - Noisy wheel covers
       - Tire noise
    • Inspect for diagnostic trouble codes in the computer command ride system.