GM Service Manual Online
For 1990-2009 cars only

No TCC Apply

Checks

Cause

Transmission Electrical Circuit

    • Improper voltage supply
    • Improper ground path
    • Defective connector, wiring harness, pressure switch or solenoid

Converter Clutch Apply Valve

Sticking

TCC Solenoid O-ring

Cut or leaking

Turbine Shift O-ring

Cut or leaking

Oil Pump Wear Plate Or Gasket

Mispositioned

Oil Pump To Converter Housing Bolts

High or uneven torque

Pipe Solenoid to Oil Pump

Loose or disconnected from oil pump

Seal, Solenoid Pipe

Cut or missing