GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

2-6 Clutch Assembly

    â€¢ Inspect for worn or improper surface finish on the 2-6 Clutch Plates (540-542)
    â€¢ Inspect for fatigued 2-6 Clutch Piston Apply Plate (540)
    â€¢ Inspect for plugged, restricted or incorrect orientation of the 2-6 Clutch Piston (535) air bleed

Case Assembly (50)

    â€¢ Inspect for damaged or broken 2-6 Clutch Piston (535) and piston seals damaged, worn or delaminating
    â€¢ Inspect for fatigued 2-6 Clutch Piston Return Spring (536)