GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: The engine front cover gasket is reusable. Replace only if gasket is damaged.Important

  1. Open the hood.
  2. 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.

  3. Disconnect the battery negative cable from the battery. Refer to Battery Cable in Engine Electrical.
  4. Remove the crankshaft position sensor from the engine front cover. Refer to Crankshaft Position Sensor Replacement .
  5. Remove the crankshaft balancer from the crankshaft. Refer to Crankshaft Balancer Replacement .
  6. Remove the water pump from the engine block. Refer to Water Pump Replacement .
  7. Important: Do not remove the oil pan, allow the oil pan to hang by the rear mounting bolts.

  8. Remove the bolts from the oil pan to the engine block. Refer to Oil Pan Replacement .

  9. Object Number: 64547  Size: SH
  10. Remove the engine front cover mounting bolts.
  11. Remove the engine front cover from the engine block.
  12. Remove the crankshaft front cover oil seal.

Installation Procedure

Important: The engine front cover gasket is reusable. Replace only if gasket is damaged.


    Object Number: 64547  Size: SH
  1. Install the engine front cover to the engine block.
  2. 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.

  3. Install the engine front cover bolts
  4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 67878  Size: SH
  5. Install the crankshaft front cover oil seal using the J22102 tool to install the seal to the engine front cover.
  6. Install the oil pan to the engine block. Refer to Oil Pan Replacement .
  7. Install the crankshaft position sensor to the engine front cover. Refer to Crankshaft Position Sensor Replacement .
  8. Install the crankshaft balancer to the crankshaft. Refer to Crankshaft Balancer Replacement .
  9. Connect the battery cable to the battery. Refer to Battery Cable in Engine Electrical.
  10. Close the hood.