4L80-E/4L85-E

Torque Converter Clutch (TCC) Valve and Spring Replacement
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the transmission oil pan and the oil filter.





Caution: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.

3. Remove the valve bore plug retainer ring (1).





4. Remove the following parts:
^ The valve bore plug
^ The TCC valve
^ The TCC valve spring

Installation Procedure





1. Install the following parts:
^ The TCC valve spring
^ The TCC valve
^ The valve bore plug





2. Install the valve bore plug retainer ring (1).
3. Install the transmission oil pan and oil filter.
4. Lower the vehicle.
5. Fill the transmission to the proper level with Dexron� III transmission fluid.