GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 21368 Pump Body Cover Alignment Band


    Object Number: 801912  Size: SH
  1. Inspect the fluid pump bushing (215) for wear - not serviceble.

  2. Object Number: 801913  Size: SH
  3. Inspect the fluid pump parts for the following:
  4. • Worn, scored or gouged pump slide
    • Cracks, wear or damage to the rotor or vanes
    • Cuts or damage to the seals
    • Broken priming springs

    Object Number: 801914  Size: SH
  5. Inspect the fluid pump housing for the following:
  6. • Porosity
    • Interconnected oil passages
    • Damaged machined surfaces

    Object Number: 801915  Size: SH
  7. Inspect the valves (207, 210 and 235) and springs (208, 209, 234, 238 and 219) for the following:
  8. • Nicks or burrs on the valves
    • Worn, distorted or cracked springs

    Object Number: 801909  Size: SH
  9. Install the tcc control valve (235) and the tcc control valve spring (234).
  10. Install the tcc control valve spring retainer (204).

  11. Object Number: 801908  Size: SH
  12. Install the pressure relief ball (239) and spring (238).
  13. Install the pressure valve spring retainer (211).

  14. Object Number: 801907  Size: SH
  15. Install the fluid pump cover seal (212) onto the new pump cover screen (213).
  16. Install the fluid pump cover screen (213).
  17. Install the fluid pump cover screen pin (211).

  18. Object Number: 801906  Size: SH
  19. Install the pressure regulator valve (210), the pressure regulator valve spring (209), and the line boost valve spring (208).
  20. Install the line boost valve bushing seal (205) onto the bushing (206).
  21. Install the line boost valve (207) and the bushing (206).
  22. Install the line boost valve bushing retainer (204).

  23. Object Number: 801905  Size: SH
  24. Install the reverse clutch housing fluid seal rings (200).

  25. Object Number: 851063  Size: SH
  26. Measure the distance from the bottom of the gage bar to the fluid pump body. Refer to Transmission Fluid Pump Specifications.
  27. Measure the thickness of pump slide (216).
  28. Select the correct size, refer to Transmission Fluid Pump Specifications.
  29. Measure the thickness of the pump rotor (223).
  30. Select the correct size rotor refer to Transmission Fluid Pump Specifications.

  31. Object Number: 801904  Size: SH
  32. Install the fluid pump support (217), the slide seal (218) and the fluid pump slide rings (220), and the fluid pump slide o-ring seal (242) onto the pump slide (216).
  33. Install the slide pin (231).
  34. Important: The fluid pump slide (216) is selective.

  35. Install the fluid pump slide (216).
  36. Using a suitable tool install the slide spring (219).

  37. Object Number: 801903  Size: SH
  38. Install the fluid pump vane ring (225).
  39. Install the fluid pump rotor guide (224).
  40. Important: The fluid pump rotor (223) is selective.

  41. Install the fluid pump rotor (223).
  42. Install the fluid pump vanes (222).
  43. Install the fluid pump vane ring (221).

  44. Object Number: 801902  Size: SH
  45. Install the fluid pump cover housing (202) onto the converter housing (224).

  46. Object Number: 801916  Size: SH
  47. Install J 21368 and tighten.
  48. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 801917  Size: SH
  49. Install the fluid pump housing retaining bolts (240, 241).
  50. Tighten

        • Tighten the fluid pump housing retaining bolts (240) to 11 N·m (8 lb. ft).
        • Tighten the fluid pump housing retaining bolts (241) to 22 N·m (16 lb. ft).
  51. Remove J 21368 .