Repair Procedures
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.
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
- Control valve body replacement - refer to Control Valve Lower Body and Upper Body Replacement .
- Control solenoid (w/body and TCM) valve assembly replacement - refer to Control Module References for replacement, setup, and programming.
- 1-2-3-4 clutch assembly repair or replace - refer to 1-2-3-4 and 3-5 Reverse Clutch Overhaul (6L50/6L80) or 1-2-3-4 and 3-5 Reverse Clutch Overhaul (6L90) .
- Perform the Service Fast Learn Adapts .