Removal Procedure
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the oil pan and transmission internal oil filter. Refer to Oil Pan Replacement .
- Disconnect the external wiring harness from the main transmission connector. Use J 44257 , if connector is not easily accessible.
- Place a 30 mm or 1 3/16 inch 12-point deep socket or box-end wrench (2) over the main transmission connector (1).
- Push inward on the socket or wrench to release the retaining feet that attach the connector (1) to the transmission case.
- Remove the wrench. Push inward on the electrical connector to separate from the transmission case.
- Disconnect the internal wiring harness connectors (1) from the solenoids, the internal mode switch (IMS), and from the transmission fluid pressure (TFP) switch.
- Remove the solenoid retainers (2) for SS3 and SS2.
- Remove the internal wiring harness from the transmission.
CAUTION:
Refer to BATTERY DISCONNECT CAUTION
.
IMPORTANT:
The main transmission connector is actually one end of the internal wiring harness that protrudes through the transmission case.
IMPORTANT:
The solenoid retainers for shift solenoid 3 (SS3) and shift solenoid 2 (SS2) also retain tabs on the wiring harness U-channel. The solenoids will remain in position even after the solenoid retainers are removed.