Removal Procedure
WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the upper and lower control valve body assembly. Refer to Control Valve Lower Body and Upper Body Replacement .
- Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement .
- Remove the electrical connector passage sleeve. Refer to Automatic Transmission Electrical Connector Passage Sleeve Replacement .
- Disconnect the speed sensor electrical connector (2) from the control solenoid valve assembly.
- Turn the control valve body assembly over.
- Disconnect the manual shift shaft position switch connector (4) from the control solenoid valve assembly.
- Remove the bolt (3) and remove the manual shift shaft position switch assembly.
- Remove the 2 bolts (1) from the "heat sink" side of the control solenoid valve assembly.
- Remove the 5 bolts (2) and the 4 bolts (1) securing the control solenoid valve assembly to the control valve body assembly.
- Remove the control valve body assembly.
- Carefully remove and discard the filter plate assembly (5).
NOTE:
The valve body must be removed from the transmission to replace the control solenoid valve and transmission control module assembly.
NOTE:
Release the connector lock before disconnecting.
CAUTION:
Use care when removing or installing the filter plate assembly. A broken or missing retaining tab may not adequately secure the filter plate to the control solenoid valve assembly, resulting in possible damage or contamination.