GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2002 🢒 L100/L200/LW200 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T40-E/4T45-E 🢒 Oil Pump Assembly and Oil Pump Shaft Replacement

Removal Procedure

    Object Number: 893972 Size: SH
  1. Remove the transaxle case side cover. Refer to Control Valve Body Cover Replacement .
  2. Remove the oil pump bolts and the oil pump assembly.
  3. Remove the oil pump shaft.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  1. Install the oil pump shaft into the control valve body assembly.

    2. Important: If necessary, rotate the oil pump shaft while installing the oil pump assembly in order to engage the shaft splines to the splines on the pump rotor.

  2. Install the oil pump assembly onto the oil pump shaft and the control valve body.

    3. Object Number: 893972 Size: SH
  3. Hand start the oil pump assembly bolts and tighten.

    4. Tighten
    Tighten the oil pump bolts to 9 N·m (9 lb ft).

  4. Install the transaxle case side cover. Refer to Control Valve Body Cover Replacement .
  5. Start the engine, warm up the transaxle, and check for leaks.
  6. Inspect the fluid level. Refer to Transmission Fluid Check .

    7. 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.

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