GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Corvette 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Pressure Regulator Valve Replacement

Removal Procedure

    Object Number: 14433 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the transmission oil pan. Refer to Oil Pan Replacement .
  3. Compress the reverse boost valve sleeve into the bore of the oil pump to release tension on the reverse boost valve retaining ring.
  4. Remove the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.

    5. Object Number: 298157 Size: SH
  5. Remove the reverse boost valve sleeve (5) and the reverse boost valve (4).
  6. Remove the pressure regulator isolator spring (3) and the pressure regulator valve spring (2).
  7. Remove the pressure regulator valve (1).

Installation Procedure

    Object Number: 298157 Size: SH
  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. Object Number: 14433 Size: SH
  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 oil pan. Refer to Oil Pan Replacement .
  8. Lower the vehicle.