GM Service Manual Online
For 1990-2009 cars only

Condition

Possible Cause

Vehicle does not move in any range (Forward or Reverse)

    • Low or no fluid
    • Shift cable out of adjustment, binding or damaged
    • Parking lock pawl mechanism locked or frozen
    • Broken torque converter to flywheel bolts
    • Torque converter stator one-way clutch no holding
    • Torque converter failure
    • Valve body spacer plate or gaskets improper position or damaged
    • Check balls omitted or improper position
    • Manual valve binding or sticking
    • Manual valve link disconnected
    • Incorrect line pressure