GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .
  2. Disconnect the transaxle wiring harness.
  3. Using a small screwdriver or pick, remove the 2-3 shift solenoid valve retainer (314C) from the control valve body (301).

  4. Object Number: 49385  Size: SH
  5. Remove the 2-3 shift solenoid (315B).
  6. remove the O-ring seal (316) from the 2-3 shift solenoid valve (315B) ONLY if it is damaged.

Installation Procedure

  1. Install a new O-ring seal (316) onto the 2-3 shift solenoid valve (315B) if the O-ring was removed.

  2. Object Number: 49385  Size: SH
  3. Install the 2-3 shift solenoid (315B).
  4. Install the 2-3 shift solenoid valve retainer (314C) into the control valve body (301).
  5. Connect the transaxle wiring harness.
  6. Install the case side cover. Refer to Control Valve Body Cover Replacement .
  7. Important: It is recommended that the 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 ECM, PCM or TCM will need to relearn the TAP values. Transmission performance may be affected as new TAP values are learned.

  8. Reset the TAP values. Refer to Adapt Function.