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.

    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.

  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. Object Number: 46149  Size: SH
  3. Disconnect the wiring harness electrical connector from the motor and the fan bracket.
  4. Remove the mounting bolts from the fan shroud or bracket.

  5. Object Number: 46153  Size: SH
  6. Remove the fan guard and the hose support as necessary.
  7. Remove the fan assembly from the radiator support.

Installation Procedure


    Object Number: 46149  Size: SH
  1. Install the fan assembly to the radiator support. Install the mounting bolts.
  2. Tighten
    Tighten the mounting bolts to 10 N·m (89 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.

  3. Install the fan guard and the hose support if these were removed.
  4. Connect the wiring harness electrical connector to the fan motor and bracket.
  5. Connect the negative battery cable.
  6. Tighten
    Tighten the negative battery cable bolt to 15 N·m (11 lb ft).