GM Service Manual Online
For 1990-2009 cars only

Engine Coolant Fan Shroud Replacement Upper

Removal Procedure

  1. Remove the air inlet duct

  2. Object Number: 180301  Size: SH
  3. Remove the upper fan shroud screws.
  4. Remove the upper fan shroud.

Installation Procedure

  1. Install the upper fan shroud to the vehicle.

  2. Object Number: 180301  Size: SH

    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 upper fan shroud attaching screws.
  4. Tighten
    Tighten the screws to 10 N·m (89 lb in).

Engine Coolant Fan Shroud Replacement Lower

Removal Procedure

  1. Drain the engine coolant from the radiator. Refer to Cooling System Draining and Filling .

  2. Object Number: 180301  Size: SH
  3. Remove the upper fan shroud. Refer to Fan Shroud Replacement .
  4. Disconnect the heater hose from the radiator.
  5. Raise the vehicle.
  6. Disconnect the radiator outlet (lower) hose.
  7. Disconnect the automatic transmission oil cooler lines from the radiator (if equipped).
  8. Disconnect the engine oil cooler lines from the radiator (if equipped). Refer to Engine Oil Cooler Hose/Pipe Replacement .
  9. Lower the vehicle.
  10. Lift the lower fan shroud just enough to disengage the locating tabs from the radiator.
  11. Remove the radiator from the vehicle. Refer to Radiator Replacement .
  12. Remove the lower fan shroud from the vehicle.

Installation Procedure

  1. Install the radiator in the vehicle, if removed. Refer to Radiator Replacement .
  2. Place the lower fan shroud in the vehicle.
  3. 2.1. Position the lower fan shroud against the radiator.
    2.2. Engage the three locating tabs by pushing down.
  4. Connect the heater hose to the radiator.
  5. Connect the coolant overflow hose to the radiator. Refer to Radiator Replacement .
  6. Raise the vehicle.
  7. Connect the engine oil cooler lines to the radiator. Refer to Engine Oil Cooler Hose/Pipe Replacement .
  8. Connect the automatic transmission oil cooler lines to the radiator.
  9. Connect the radiator outlet hose to the radiator.
  10. Lower the vehicle.

  11. Object Number: 180301  Size: SH
  12. Install the upper fan shroud to the lower fan shroud. Refer to Fan Shroud Replacement .
  13. Install the fan shroud attaching screws.
  14. Tighten
    Tighten the fan shroud attaching screws 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.

  15. Fill the cooling system to the specified level and concentration. Refer to Cooling System Draining and Filling .
  16. Start the engine and check for leakage. Refer to Cooling System Leak Testing .