GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Keep hands, tools, and clothing away from the electric engine coolant fans in order to help prevent personal injury. These fans are electric and can turn on whether or not the engine is running. The fans can start automatically with the ignition in the ON position.

  1. Disconnect the negative battery cable. Refer to

    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.

    in General Information.
  2. Remove the air intake duct and the air cleaner.
  3. Disconnect the fan electrical connector and the clips.

  4. Object Number: 11683  Size: SH
  5. Remove the radiator upper mounting screws and panel.

  6. Object Number: 41692  Size: SH
  7. Remove the electric engine coolant fan. The fan will slide off of the radiator.
  8. Remove the fan blade nut.
  9. Caution: If a fan blade is bent or damaged in any way, do not repair or reuse the damaged part. Always replace a bent or damaged fan blade. Fan blades that have been damaged can not be assured of proper balance and could fail and fly apart during subsequent use. This creates an extremely dangerous situation.

    The fan blades must remain in proper balance. You cannot assure fan blade balance once a fan blade has been bent or damaged. A fan blade that is not in proper balance could fail and fly apart during use, creating an extremely dangerous situation.

  10. Remove the fan blade.
  11. Inspect for the following conditions:
  12. • Bent or cracked fan blades
    • Smoothness of the fan blade mating surfaces
    • Remove burrs or other imperfections as necessary

Installation Procedure


    Object Number: 41692  Size: SH
  1. Install the fan blade.
  2. Install the fan blade nut.
  3. Install the electric engine coolant fan. The fan will slide into place on the radiator.

  4. Object Number: 11683  Size: SH
  5. Install the upper radiator mounting panel and screws.
  6. Tighten
    Tighten the radiator upper panel mounting screws to 12 N·m (106 lb in).

    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.

  7. Connect the electrical connector and the clips.
  8. Install the air cleaner and the intake duct.
  9. Connect the negative battery cable.
  10. Tighten
    Tighten the negative battery cable bolt to 15 N·m (11 lb ft).