GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: An electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.

Caution: To help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan blade or housing should always be replaced.

    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 negative battery cable.
  2. Recover refrigerant . Refer to Refrigerant Recovery and Recharging in HVAC.
  3. Remove the core support filler panels. Refer to Filler Panel Replacement - Upper in Body Front End.
  4. Remove the left fender to core support brace. Refer to Radiator Support Diagonal Brace Replacement in Body Front End.
  5. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls.
  6. Remove the PCM from mounting and set aside.
  7. Remove the hood release cable and set aside.
  8. Remove the inflatable restraint front end discriminating sensor. Refer to Inflatable Restraint Front End Discriminating Sensor Replacement in Restraints
  9. Remove the left and right engine torque strut brackets from the core support and fold strut assembly back toward the engine. Refer to Engine Mount Strut Replacement in Engine Mechanical.
  10. Remove the cooling fan attaching bolts
  11. Remove the radiator upper support.
  12. Disconnect the cooling fan electrical connectors and remove the cooling fans.
  13. Disconnect the upper oil cooler line from the radiator.

  14. Object Number: 72212  Size: SH
  15. Disconnect the cooling fan electrical connectors.

  16. Object Number: 69957  Size: SH
  17. Remove the cooling fans.

Installation Procedure


    Object Number: 69957  Size: SH
  1. Install the cooling fans.

  2. Object Number: 72212  Size: SH
  3. Connect the cooling fan electrical connectors.
  4. Connect the upper transmission cooler line to the radiator.
  5. 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.

  6. Position the cooling fans and install the retaining bolts.
  7. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  8. Install the radiator upper support and retaining bolts. Refer to Filler Panel Replacement - Upper in Body Fornt End.
  9. Connect the hood release cable.
  10. Install the PCM into the mounts.
  11. Install the left fender to core support brace.
  12. Install the core support upper filler panels
  13. Install the left engine torque strut. Refer to Engine Mount Strut Replacement in Engine Mechanical.
  14. Install the inflatable restraint front end discriminating sensor. Refer to Inflatable Restraint Front End Discriminating Sensor Replacement in Restraints
  15. Install the air cleaner. Refer to Air Cleaner Assembly Replacement in Engine Controls.
  16. Install the core support filler panels.
  17. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging