Automatic Transmission - 4L60-E/4L65-E
Pressure Regulator ReplacementRemoval Procedure
1. Remove the transmission filter. Refer to Automatic Transmission Fluid/Filter Replacement.
2. Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring.
3. Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
4. Remove the reverse boost valve sleeve (5) and the reverse boost valve (4).
5. Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
6. Remove the pressure regulator valve (1).
Installation Procedure
1. Install the pressure regulator valve (1).
2. Install the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
3. Install the reverse boost valve (4) in the reverse boost valve sleeve (5).
4. Install the reverse boost valve (4) and sleeve (5) in the oil pump cover.
5. Compress the reverse boost valve sleeve into the bore of the oil pump to expose the retaining ring slot.
6. Install the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
7. Install the transmission filter. Refer to Automatic Transmission Fluid/Filter Replacement.