GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the crankshaft pulley. Refer to Crankshaft Pulley Replacement .
  3. Remove the timing belt. Refer to Timing Belt Replacement .

  4. Object Number: 262436  Size: SH

    Important: In order to protect the crankshaft from damage, wrap the tip of the screwdriver with tape.

  5. Use a screwdriver in order to pry out the crankshaft front oil seal.

Installation Procedure


    Object Number: 262423  Size: SH
  1. Lubricate the new crankshaft front oil seal with Chassis Grease GM P/N 1051344 or equivalent.
  2. Using a hammer, lightly tap the crankshaft front oil seal into place.
  3. Important: Tap the oil seal in until its surface is flush with the crankshaft front oil seal retainer edge.

  4. Install the timing belt. Refer to Timing Belt Replacement .
  5. Install the crankshaft pulley. Refer to Crankshaft Pulley Replacement .
  6. Connect the negative battery cable.
  7. Tighten
    Tighten the nut to 15 N·m (11 lb ft).

  8. Start the engine.