GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 33163 Valve Tray Set
    • J 43773 Valve Spring Compressor

    Notice: Refer to Transmission Control Valve Body Overhaul Notice in the Preface section.


    Object Number: 1581008  Size: SH

    Important: To help prevent confusing parts on assembly, J 33163 has been used during the disassemble procedure in order to store the removed valves, springs, and stops.

  1. Install the shift solenoid screen (1).
  2. Measure the screen installation depth at dimension A.
  3. Specification
    The screen installed depth is 0.50-1.0 mm (0.020-0.039 in) below the shift valve body surface as shown.


    Object Number: 795173  Size: SH
  4. Install the control main valve (1) and the control main spring (2).

  5. Object Number: 795171  Size: SH
  6. Compress the spring with J 43773  (2).
  7. Install the retaining clip (1).
  8. Make sure the retaining clip is below the valve body surface.

  9. Object Number: 795170  Size: SH
  10. Install shift valve 2 (SV2) (1), spring (2), and plug (3).

  11. Object Number: 795169  Size: SH
  12. Compress the spring with J 43773  (2).
  13. Install the retaining clip (1).

  14. Make sure the retaining clip is below the valve body surface.

  15. Object Number: 795166  Size: SH
  16. Install shift valve 3 (SV3) (1), the spring (2), and plug (3).

  17. Object Number: 795164  Size: SH
  18. Compress the spring with J 43773  (2).
  19. Install the retaining clip (1).
  20. Make sure the retaining clip is below the valve body surface.

  21. Object Number: 795163  Size: SH
  22. Install shift valve 1 (SV1) (1) and spring (2).

  23. Object Number: 795162  Size: SH
  24. Compress the spring with J 43773  (2).
  25. Install the retaining clip (1).
  26. Make sure the retaining clip is below the valve body surface.