GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the flywheel. Refer to Engine Flywheel Replacement .
  2. Remove the oil pan. Refer to Oil Pan Replacement .

  3. Object Number: 11479  Size: SH
  4. Remove the crankshaft rear oil seal housing nuts and bolts.
  5. Remove the crankshaft rear oil seal housing with assembled seal and gasket.
  6. Remove the crankshaft rear oil seal from the crankshaft rear oil seal housing.
  7. Clean the gasket surfaces.

Installation Procedure

  1. Always use a new crankshaft rear oil seal and a new oil seal housing gasket when you install a crankshaft rear oil seal housing.

  2. Object Number: 11479  Size: SH
  3. Install a new oil seal housing gasket and crankshaft rear oil seal housing on the studs. It is not necessary to use any type of sealant in order to hold the oil seal housing gasket in place.
  4. Install the crankshaft rear oil seal housing nuts and bolts.
  5. Tighten
    Tighten the crankshaft rear oil seal housing nuts and bolts to 15 N·m (11 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Inspect the oil pan gasket for damage. Replace the gasket if necessary.