GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

1-2 Shift Solenoid Valve

    • Stuck OFF
    • Pinched wire to ground

Pressure Control Solenoid

    • Inoperative
    • Leakage
    • Pinched wire to ground

Starts at HI Line only, Driven Sprocket Support

Staked checkball missing