Repair Procedures
WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Perform the Diagnostic Repair Verification after completing the repair.
- Allow the transmission to operate through all gears. Ensure that the gear ratios match each commanded gear and the TCC slip speed is 100 RPM or greater with the TCC commanded OFF.
- Shift Solenoid Leak Test