GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 2009918  Size: SH
  1. Remove the control valve body cover. Refer to Control Valve Body Cover Installation.
  2. Disconnect the shift position switch electrical connector (1).
  3. Disconnect the output speed sensor electrical connector (2).
  4. Disconnect the input speed sensor electrical connector (3).

  5. Object Number: 2009922  Size: SH
  6. Remove the control valve body bolts (1) M5 x 40.5.
  7. Remove the control valve body bolts (2) M6 x 97.
  8. Remove the control solenoid valve body and transmission control module (TCM) assembly (3).
  9. Note: Use care when removing or installing the filter plate. A broken or missing retaining tab may not adequately secure the filter plate to the control solenoid valve assembly, resulting in possible damage or contamination.

    Note: Discard the filter plate. It is not reusable. Inspect the pressure switch seals for damage or contamination. Replace the control solenoid valve assembly as necessary.

  10. Remove the control solenoid valve assembly filter plate (4).
  11. Inspect the pressure switch seals for damage or contamination. Replace the control solenoid valve assembly as necessary.
  12. Inspect the channel plate bolt pass through holes for damage or burnelling. Any damage could cause leaking. Replace as necessary.

Installation Procedure


    Object Number: 2009924  Size: SH

    Note: Use care when removing or installing the filter plate. A broken or missing retaining tab may not adequately secure the filter plate to the control solenoid valve assembly, resulting in possible damage or contamination.

  1. Install a NEW control solenoid valve assembly filter plate (1) to prevent fluid leaks past the fluid seals.
  2. Install the control solenoid valve body and TCM assembly (2).
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2009918  Size: SH

    Note: Install all bolts before tightening, then tighten in the specified sequence.

  4. Install the control valve body bolts (3) M5 x 40.5 and tighten to 8 N·m (71 lb in).
  5. Install the control valve body bolts (4) M6 x 97 and tighten to 12 N·m (106 lb in).

  6. Object Number: 1998829  Size: SH
  7. Connect the input speed sensor electrical connector (3).
  8. Connect the output speed sensor electrical connector (2).
  9. Connect the shift position switch electrical connector (1).
  10. Install the control valve body cover. Refer to Control Valve Body Cover Installation.
  11. Note: Do not drive the vehicle before completing the reprogramming.

  12. Reprogram the TCM with the correct calibration.
  13. Note: After an internal transmission repair or internal part replacement, the service fast learn adapt procedure should be performed.

  14. Perform the service fast learn adapt procedure. Refer to Service Fast Learn Adapts.