Diagnostic Aids
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the transmission fluid lines to the radiator. The lines may be pinched, plugged or twisted.
- Contamination may cause the TCC apply valve to stick in the valve body.
- Internal damage to the torque converter may prevent TCC application.