Removal Procedure
- Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
Courtesy of GENERAL MOTORS CORP.
- Compress and hold 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 following from the oil pump:
- The reverse boost valve sleeve (5).
- The reverse boost valve (4).
- The pressure regulator isolator spring (3).
- The pressure regulator valve spring (2).
- The pressure regulator valve (1).