GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the transmission oil pan. Refer to Automatic Transmission Fluid and Filter Replacement

  2. Object Number: 14433  Size: SH
  3. Compress the reverse boost valve sleeve and the related components with a small screwdriver.
  4. Remove the reverse boost valve retaining ring.
  5. Slowly release the spring pressure.

  6. Object Number: 14438  Size: SH
  7. Remove the reverse boost valve sleeve.
  8. Remove the reverse boost valve.

  9. Object Number: 14456  Size: SH
  10. Remove the pressure regulator isolator spring.
  11. Remove the pressure regulator valve spring.
  12. Remove the pressure regulator valve.

Installation Procedure

Tools Required

J 36850 Transjelâ„¢


    Object Number: 14456  Size: SH
  1. Install the pressure regulator valve into the oil pump cover bore.
  2. Install the pressure regulator valve spring.
  3. Install the pressure regulator isolator spring.

  4. Object Number: 14438  Size: SH
  5. Install the reverse boost valve and reverse boost valve sleeve and other related components.Retain with J 36850 , or equivalent.

  6. Object Number: 14433  Size: SH
  7. Compress the reverse boost valve sleeve and the related components. Using a small screwdriver.
  8. Install the reverse boost valve retaining ring into the oil pump cover bore.
  9. Install the automatic transmission oil pan. Refer to Automatic Transmission Fluid and Filter Replacement