GM Service Manual Online
For 1990-2009 cars only

Condition

Possible Cause

Harsh engagement into any forward range

    • Low fluid
    • TV cable out of adjustment, binding or damaged
    • Shift select cable out of adjustment, biding or damaged
    • Manual valve binding or sticking
    • Throttle valve binding or sticking
    • B2 control valve binding or sticking
    • Accumulator(s) pistons damaged or leaking
    • Accumulator(s) seals cut or damaged
    • Accumulator(s) broken or distorted springs
    • Incorrect line pressure