GM Service Manual Online
For 1990-2009 cars only

Checks

Cause

Transmission

    • Low oil
    • Not starting in first gear

TCC System

TCC is stuck On, or TCC is dragging.

Torque Converter (1)

Debris is in the converter.

Stator Shaft (235)

The shaft is broken.

Turbine Shaft (502)

The bushing is worn.

Mainshaft (662)

The bushing is worn.

Output Shaft (671)

The bushing is worn.

Bearing (668)

The bearing is worn.