Torque Converter Clutch Slip - 100 RPM Slip. GMC Truck Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 Torque Converter Clutch Slip - 100 RPM Slip

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