GM Service Manual Online
For 1990-2009 cars only

Checks

Cause

Governor (4) or Governor Cover (802) (depending on model)

    â€¢ The Governor cover is worn (802)
    â€¢ The thrust washer is missing (6)
    â€¢ The governor seal is worn or cut (7)
    â€¢ The governor spring is not seated (4)
    â€¢ The governor weights are binding on the pin (4)
    â€¢ A ball is missing (4)
    â€¢ The governor driven gear is stripped (4)

Intermediate Servo (128-137)

The intermediate servo is sticking (129-134)

Direct Clutch Orifice Controlled by #2 Checkball

Restricted orifice

1-2 Accumulator (419-422)

    â€¢ The piston is missing (421)
    â€¢ A seal is leaking (420)