GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 41816 Crankshaft Balancer Remover
    • J 41816-2 Crankshaft End Protector
    • J 42386-A Flywheel Holding Tool
    • J 41665 Crankshaft Balancer and Sprocket Installer

Important: Do not reuse the crankshaft balancer bolt. Install a NEW crankshaft balancer bolt during final assembly.

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 starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  3. Remove the upper radiator shroud. Refer to Fan Shroud Replacement in Engine Cooling.
  4. Remove the drive belt. Refer to Drive Belt Replacement .
  5. Remove the engine cooling fan. Refer to Fan Clutch Replacement in Engine Cooling.

  6. Object Number: 156164  Size: SH
  7. Remove the crankshaft balancer. Refer to Crankshaft Balancer Removal
  8. Clean and inspect all parts. Refer to Crankshaft Balancer Cleaning and Inspection

Installation Procedure


    Object Number: 63187  Size: SH
  1. Install the crankshaft balancer. Refer to Crankshaft Balancer Installation
  2. Install the drive belt. Refer to Drive Belt Replacement .
  3. Install the engine cooling fan. Refer to Fan Clutch Replacement in Engine Cooling.
  4. Install the upper radiator shroud. Refer to Fan Shroud Replacement in Engine Cooling.
  5. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  6. Connect the negative battery cable.