Removal Procedure
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the transmission control valve body cover. Refer to Control Valve Body Cover Replacement .
Disconnect the output speed sensor electrical connector (2).
- Disconnect the shift position switch electrical connector (3).
- Disconnect the input speed sensor electrical connector (1).
Remove the 3 control valve body bolts (1) M5 x 40.5.
- Remove the 12 control valve body bolts (2) M6 x 97.
- Remove the control solenoid valve assembly (3) with transmission control module.
- Remove the control solenoid valve assembly filter plate (4). Discard the filter plate. It is not reusable.
- Inspect the pressure switch seals for damage or contamination. Replace the control solenoid valve assembly as necessary.
- Inspect the channel plate bolt pass through holes for damage or burnelling. Any damage could cause leaking. Replace as necessary.
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.