Torque Converter Clutch Slip - 100 RPM Slip

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.

TCC Slip (100 RPM)

Checks	Causes
Valve Body Assembly (60)	TCC/PWM solenoid leaks Regulator apply valve or converter clutch shift valve sticking or side loading
Oil Pump Assembly (4)	Stator shaft bushings worn, due to scratched turbine shaft journal (replace bushings and input housing assembly) TCC apply valve is stuck open TCC solenoid leaking
Input Housing and Turbine Shaft Assembly (621)	Scratched journal on turbine shaft Turbine shaft O-ring cut Turbine shaft hole not drilled to full depth