GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Aurora 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T65-E 🢒 Pressure Control Solenoid Valve Replacement

Removal Procedure
  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .
  2. Disconnect the transaxle wiring harness.

    3. Object Number: 49378 Size: SH
  3. Using a small screwdriver or pick, remove the pressure control solenoid valve retainer (314E) from the control valve body (301).
  4. Remove the pressure control solenoid (322).
  5. Remove the O-ring seals (307, 316) from the PC solenoid valve (322) ONLY if they are damaged.

Installation Procedure

    Object Number: 49378 Size: SH
  1. Install new O-ring seals (307, 316) onto the pressure control (PC) solenoid valve  (322), if they had been removed.
  2. Install the pressure control solenoid (322).
  3. Hold the PC solenoid valve (322) in the control valve body (301). Install the pressure control solenoid valve retainer (314E) into the control valve body (301).
  4. Connect the transaxle wiring harness.
  5. Install the case side cover. Refer to Control Valve Body Cover Replacement .

    6. 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 ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

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