Sierra 1500 4WD V8-6.0L (2007)
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.
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:
*
When the pressure control valve retaining bracket (5) is removed, there are 2 sets of accumulators (3) and springs (6) which may fall
