GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 48209  Size: SH
  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .
  2. Disconnect and reposition the electrical connectors from the following:
  3. • Internal mode switch (IMS)
    • 2-3 shift solenoid valve assembly (315B)
    • Automatic transaxle fluid pressure manual valve position switch assembly (395)

    Object Number: 893320  Size: SH
  4. Remove the oil pump bolts (230, 231).

  5. Object Number: 893321  Size: SH
  6. Remove the oil pump (200) from the valve body (300).

  7. Object Number: 49380  Size: SH
  8. Disconnect the torque converter clutch (TCC) pulse width modulation (PWM) solenoid electrical connector.
  9. Remove the TCC PWM solenoid retaining clip (314F).
  10. Remove the TCC PWM solenoid (334).

Installation Procedure


    Object Number: 49380  Size: SH
  1. Install the TCC PWM solenoid (334).
  2. Install the TCC PWM solenoid retaining clip (314F).
  3. Connect the TCC PWM solenoid electrical connector.

  4. Object Number: 893321  Size: SH
  5. Install the oil pump (200) to the valve body (300).
  6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 893320  Size: SH
  7. Install the oil pump bolts (230, 231).
  8. Tighten

        • Tighten the nine bolts (231) to 12 N·m (106 lb in).
        • Tighten the two bolts (230) to 16 N·m (12 lb ft).

    Object Number: 48209  Size: SH
  9. Reposition and connect the electrical connectors to the following:
  10. • Automatic transaxle fluid pressure manual valve position switch assembly (395)
    • 2-3 shift solenoid valve assembly (315B)
    • Internal mode switch (IMS)

    Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM) or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned. Reset the TAP values. Refer to Transmission Adaptive Functions .

  11. Install the case side cover. Refer to Control Valve Body Cover Replacement .