Sierra 1500 2WD V6-4.3L (2008)
Shift Solenoid: Service and Repair
Allison - Automatic Transmission
Control Valve Solenoid Replacement (PCS1 and PCS2)
Control Valve Solenoid Replacement (PCS1 and PCS2)
Removal Procedure
1. Remove the oil pan and transmission internal oil filter. Refer to Oil Pan Replacement (See: Fluid Pan/Service and Repair/Allison - Automatic
Transmission) .
2. Disconnect the internal wiring harness from the solenoid being changed.
3. Remove the 2 bolts that fasten reverse signal pipe to the control valve assembly. Remove the reverse signal pipe.
Important:
