GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 41371 Reluctor Wheel Remover

    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.

  1. Disconnect the battery negative cable.

  2. Object Number: 64551  Size: SH
  3. Remove the crankshaft balancer from the crankshaft. Refer to Crankshaft Balancer Replacement .

  4. Object Number: 66263  Size: SH
  5. Remove the water pump from the engine block. Refer to Water Pump Replacement in Engine Cooling.

  6. Object Number: 64547  Size: SH
  7. Remove the engine front cover from the engine block. Refer to Engine Front Cover Replacement .

  8. Object Number: 181777  Size: SH
  9. Use the J 41371 in order to remove the reluctor ring from the crankshaft.

Installation Procedure

Important: Replace the crankshaft position sensor whenever the crankshaft position reluctor ring is replaced.


    Object Number: 65847  Size: SH
  1. Install the crankshaft position reluctor ring on to the crankshaft.

  2. Object Number: 64547  Size: SH
  3. Install the engine front cover to the engine block. Refer to Engine Front Cover Replacement .

  4. Object Number: 66263  Size: SH
  5. Install the water pump to the engine block. Refer to Water Pump Replacement in Engine Cooling.

  6. Object Number: 66720  Size: SH
  7. Install the crankshaft balancer to the crankshaft. Refer to Crankshaft Balancer Replacement .
  8. Connect the battery negative cable.