Removal Procedure
Courtesy of GENERAL MOTORS CORP.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
in General Information.
- Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid/Filter Replacement .
- Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring.
- Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
Courtesy of GENERAL MOTORS CORP.
- Remove the reverse boost valve sleeve (5) and the reverse boost valve (4).
- Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
- Remove the pressure regulator valve (1).