GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.

  1. Disconnect the negative battery cable.
  2. Remove the transaxle assembly. Refer to the following:
  3. •  Transmission Replacement in Automatic Transmission -- MU5 for all wheel drive automatic transaxle
    •  Transmission Replacement in Automatic Transmission -- MU4 for 4-speed automatic transaxle
    •  Transmission Replacement in Manual Transmission -- MK5 for 5-speed manual transaxle
    •  Transmission Replacement in Manual Transmission -- MTN for 6-speed manual transaxle
  4. If equipped with a manual transmission, remove the clutch and pressure plate. Refer to Clutch Assembly Replacement in Clutch.

  5. Object Number: 236523  Size: SH
  6. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .

  7. Object Number: 236248  Size: SH

    Important: To protect the crankshaft from damage, wrap the tip of the screwdriver with tape.

  8. Use a screwdriver and pry out the crankshaft rear oil seal.

Installation Procedure


    Object Number: 236250  Size: SH
  1. Apply multi-purpose grease to the new crankshaft rear oil seal lip.
  2. Important: Tap the oil seal in until its surface is flush with the crankshaft rear oil seal retainer edge.

  3. Using a hammer, lightly tap the crankshaft rear oil seal into place.

  4. Object Number: 236523  Size: SH
  5. Install the flywheel. Refer to Engine Flywheel Replacement .
  6. If equipped with a manual transmission, install the clutch and pressure plate. Refer to Clutch Assembly Replacement in Clutch.
  7. Install the transaxle assembly. Refer to the following:
  8. •  Transmission Replacement in Automatic Transmission -- MU5 for all wheel drive automatic transaxle
    •  Transmission Replacement in Automatic Transmission -- MU4 for 4-speed automatic transaxle
    •  Transmission Replacement in Manual Transmission -- MK5 for 5-speed manual transaxle
    •  Transmission Replacement in Manual Transmission -- MTN for 6-speed manual transaxle

    Notice: Refer to Fastener Notice in the Preface section.

  9. Connect the negative battery cable.
  10. Tighten
    Tighten the battery cable bolt to 15 N·m (11 lb ft).