GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Variable Low 1-2R Clutch Assembly

    • Inspect for damaged VL1-2R clutch housing assembly.
    • Inspect for damaged or distorted shaft.

4th Clutch Hub Assembly

Inspect for damaged or distorted shaft on hub assembly.

Variable High 2-3-4 and 1-3R Clutch Hub Assembly

    • Inspect for damaged or distorted shaft on hub assembly.
    • Inspect the output carrier inner sun gear shaft bushings for damage or wear.