Express 2500 V8-6.6L DSL Turbo (2010)
Valve Body: Service and Repair
4L60-E/4L65-E/4L70-E - Automatic Transmission
Control Valve Body Replacement
Removal Procedure
1. Remove the fluid level indicator.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
3. Remove the oil pan, gasket, and filter. Refer to Automatic Transmission Fluid and Filter Replacement (See: Service and Repair/Removal and
Replacement/4L60-E/4L65-E/4L70-E - Automatic Transmission/Automatic Transmission Fluid and Filter Replacement).
4. Disconnect all the internal wiring harness electrical connectors from the electrical connectors (1-6) components.
5. Remove the torque converter clutch (TCC) pulse width modulation (PWM) solenoid retainer (2) with a small screwdriver. Rotate the solenoid (1)
in the bore, if necessary, until the flat part of the retainer (2) is visible.
6. Remove the TCC PWM solenoid (1) in order to access the TCC solenoid retaining bolts.
