GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 25025-5 Dial Indicator Mounting Post-M6 x 1.00
    • J 36850 Transjel Lubricant

    Object Number: 2035546  Size: SH
  1. Inspect the wiring harness and solenoid assembly for the following conditions:
  2. • Damage
    • Cracked connectors
    • Exposed wires
    • Loose electrical terminals
    • Damaged wiring loom and conduit
    • Worn, missing, or cut pass-through connector O-ring seal.
  3. Install the transmission wiring harness pass-through connector into the transmission case. Ensure connector tabs lock into place.
  4. Move the harness to one side in order to install the valve body.

  5. Object Number: 7741  Size: SH

    Note: Valve bodies are model dependent.

  6. Install the ball check valves (2-6, 8, 12) in the valve body and retain ball check valves with J 36850 transjel lubricant or an equivalent.

  7. Object Number: 2035547  Size: SH

    Caution: Be sure all solenoids are installed with the electrical connectors facing the non-machined (cast) side of the valve body; otherwise, the solenoids will bind against the transmission case as the valve body bolts are tightened and damage may occur.

  8. Install the valve body over the J 25025-5 mounting post , and connect the manual valve link to the manual valve.
  9. Install 2 valve body bolts to hold the valve body in place.
  10. Remove the J 25025-5 mounting post .

  11. Object Number: 2035541  Size: SH
  12. Install the 12 valve body bolts (62), 2 bolts (59) and 3 bolts (120) that are shown only.
  13. Finger tighten the bolts.

  14. Object Number: 2035536  Size: SH
  15. Install the transmission wiring harness on the valve body.
  16. Caution: Refer to Fastener Caution in the Preface section.

  17. Install the torque converter clutch (TCC) solenoid valve and bolts (68). Tighten the bolts to 8-14 N·m (6-10 lb ft).

  18. Object Number: 2035548  Size: SH

    Caution: Do not over-tighten the bolts. Over-tightening the bolts will distort the valve bores. Begin tightening from the center of the valve body tighten the bolts in a outward direction.

  19. Inspect to ensure all of the valve body bolts are in the correct location.
  20. Each bolt number refers to a specific bolt size, as indicated in the following list:

    • 59 - M6 x 1.0 x 35.0 (Qty: 2)
    • 62 - M6 x 1.0 x 47.5 (Qty: 12)
    • 120 - M6 x 1.0 x 54.4 (Qty: 3)
  21. Tighten the bolts from the center of the valve body working your way out in a spiral pattern to the outside edge. Tighten the bolts to 8-14 N·m (6-10 lb ft).

  22. Object Number: 405022  Size: SH
  23. Install the torque converter clutch pulse width modulation (TCC PWM) solenoid valve (396) and the solenoid retainer (395).

  24. Object Number: 2035534  Size: SH
  25. Snap the wiring harness in place on the valve body bolts. Ensure the harness loom tab is located under the TFP switch.
  26. Install the wiring connectors to the electrical components as indicated in the following list:
  27. • 1 - Manual shift detent lever with shaft position switch assembly
    • 2 - 1-2 shift solenoid
    • 3 - 2-3 shift solenoid
    • 4 - Pressure control solenoid (PCS)
    • 5 - TCC PWM solenoid
    • 6 - Input speed sensor (ISS)