GM Service Manual Online
For 1990-2009 cars only

Torque Converter Clutch Stuck On for Chevrolet Chevy Suburban - 2WD 1999

TCC Stuck On

Checks

Cause

Gasket (6)

Damaged

TCC Shift Solenoid Valve (323)

    • Stuck On
    • Pinched wire to ground

TCC Apply Valve (324)

Stuck

Quad Driver Module

Failed

Check VCM/PCM for current DTCs

Refer to Incorrect Torque Converter Clutch Apply or Release