GM Service Manual Online
For 1990-2009 cars only

Torque Converter Clutch Intermittent - OK Cold/Slips Hot for Chevrolet Express - AWD 2006

Intermittent TCC OK Cold/Slips Hot

Checks

Causes

TCC PWM Solenoid (396)

Leaks

Regulator Apply Valve (216)

Sticking valve

Converter Clutch Shift Valve (224)

Sticking valve