GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Open the hood.
  2. Remove the engine cover from the vehicle. Refer to Engine Cover Replacement in Body.
  3. Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

  4. Disconnect the battery negative cable from the battery. Refer to Battery Cable Replacement in Engine Electrical.
  5. Remove the transmission from the vehicle. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
  6. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .

  7. Object Number: 59909  Size: SH

    Important: When removing the crankshaft rear oil seal be careful not to nick the crankshaft sealing surface.

  8. Remove the crankshaft rear oil seal from the engine block.

Installation Procedure

Tools Required

J 38841 Rear Oil Seal Installer


    Object Number: 59909  Size: SH
  1. Install the crankshaft rear oil seal as follows:
  2. • Lubricate the inner and the outer diameter of the seal with clean engine oil.
    • Install the seal on the J 38841 .
    • Position the J 38841 against the crankshaft.
    • Thread the attaching screws into the tapped holes in the crankshaft.
    • Tighten the screws securely with a screwdriver in order to ensure that the seal is installed squarely over the crankshaft.
    • Turn the handle until it bottoms.
    • Remove the J 38841 .
  3. Install the engine flywheel to the crankshaft. Refer to Engine Flywheel Replacement .
  4. Install the transmission in the vehicle. Refer to Transmission Replacement or Transmission Replacement in Transmission/Transaxle.
  5. Connect the battery negative cable to the battery. Refer to Battery Cable Replacement .
  6. Install the engine cover in the vehicle. Refer to Engine Cover Replacement in Interior Trim.
  7. Close the hood.