GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the exhaust system.
  2. Remove the transmission oil pan and the filter. Refer to Automatic Transmission Fluid and Filter Replacement

  3. Object Number: 46664  Size: SH
  4. Remove the external wiring harness connector from the transmission pass-through connector. Squeeze the fore and aft flats on the connector in order to release the locking tabs and the pull connector.

  5. Object Number: 14464  Size: SH
  6. Remove the 1-2 accumulator cover bolts.
  7. Remove the 1-2 accumulator cover.

  8. Object Number: 14467  Size: SH
  9. Remove the 1-2 accumulator piston.
  10. Remove the 1-2 accumulator springs, and the oil ring seal.

  11. Object Number: 49313  Size: SH
  12. Disconnect the transmission pressure switch electrical connector.

  13. Object Number: 49311  Size: SH
  14. Disconnect the 1-2 shift solenoid electrical connector.

  15. Object Number: 49310  Size: SH
  16. Disconnect the 2-3 shift solenoid electrical connector.

  17. Object Number: 49307  Size: SH
  18. Disconnect the pressure control solenoid electrical connector.

  19. Object Number: 49303  Size: SH
  20. Disconnect the TCC control solenoid electrical connector.

  21. Object Number: 49297  Size: SH
  22. Disconnect the wiring harness and the solenoid electrical connector.

  23. Object Number: 49277  Size: SH
  24. Disconnect the 3-2 control solenoid electrical connector.

  25. Object Number: 13876  Size: SH
  26. Remove the pressure control solenoid retainer bolt.

  27. Object Number: 13880  Size: SH
  28. Remove the pressure control solenoid retainer.

  29. Object Number: 13883  Size: SH
  30. Remove the pressure control solenoid from the control valve body.

  31. Object Number: 14471  Size: SH
  32. Remove the TCC solenoid bolts.
  33. Remove the pass-through electrical connector from the transmission case.

  34. Object Number: 7747  Size: SH
  35. Remove the TCC solenoid with the wiring harness from the transmission case.

Installation Procedure


    Object Number: 7747  Size: SH
  1. Install the TCC solenoid with the wiring harness to the transmission case.
  2. Install the pass-through electrical connector to the transmission case.

  3. Object Number: 14471  Size: SH
  4. Install the TCC solenoid bolts.

  5. Object Number: 13883  Size: SH
  6. Install the pressure control solenoid to the control valve body.

  7. Object Number: 13880  Size: SH
  8. Install the pressure control solenoid retainer.

  9. Object Number: 13876  Size: SH
  10. Install the pressure control solenoid bolt.
  11. Tighten

        • Tighten the TCC solenoid bolts to 11 N·m (97 lb in).
        • Tighten the pressure control solenoid bolt to 11 N·m (97 lb in).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 49277  Size: SH
  12. Connect the 3-2 control solenoid electrical connector.

  13. Object Number: 49297  Size: SH
  14. Connect the wiring harness and the solenoid electrical connector.

  15. Object Number: 49303  Size: SH
  16. Connect the TCC control solenoid electrical connector.

  17. Object Number: 49307  Size: SH
  18. Connect the pressure control solenoid electrical connector.

  19. Object Number: 49310  Size: SH
  20. Connect the 2-3 shift solenoid electrical connector.

  21. Object Number: 49311  Size: SH
  22. Connect the 1-2 shift solenoid electrical connector.

  23. Object Number: 49313  Size: SH
  24. Connect the transmission pressure switch electrical connector.

  25. Object Number: 14467  Size: SH
  26. Install the 1-2 accumulator piston to the accumulator cover. Install the piston legs facing toward the case.
  27. Install the 1-2 accumulator spring onto the piston.

  28. Object Number: 14464  Size: SH
  29. Install the 1-2 accumulator cover.
  30. Install the 1-2 accumulator cover bolts.
  31. Tighten
    Tighten the bolts/screws to 11 N·m (97 lb in).


    Object Number: 46664  Size: SH
  32. Install the wiring harness connector to the transmission pass-through connector.
  33. Install the transmission oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement
  34. Install the exhaust system.