GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 38543 Heater Hose Clamp Tool
    • J 41623-B Trans Oil Cooler Line Disconnect

Removal Procedure

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the upper radiator support. Refer to Front End Upper Tie Bar Replacement in Body Front End.
  3. Drain the cooling system. Refer to Cooling System Draining and Filling .
  4. Remove the air deflector. Refer to Front Air Deflector Replacement in Body Front End.

  5. Object Number: 518548  Size: SH
  6. Remove the engine oil cooler pipe retaining clip and bolt from the fan shroud.
  7. Lower the vehicle.

  8. Object Number: 518339  Size: SH
  9. Position the J 38543 on the hose clamp and slide clamp.
  10. Disconnect the radiator hose.

  11. Object Number: 518549  Size: SH
  12. Disconnect the upper engine oil cooler pipe from the radiator.

  13. Object Number: 566627  Size: SH
  14. Remove the upper transaxle oil cooler pipe retaining bolt from the fan shroud.
  15. Slide the plastic cap off the upper transaxle oil cooler pipe quick connect fitting.
  16. Disconnect the upper transaxle oil cooler pipe from the radiator using the J 41623-B .

  17. Object Number: 520468  Size: SH
  18. Disconnect the wiring harness electrical connectors (1) from the cooling fan motors.
  19. Remove the clips (2) attaching the harness to the fan shroud.
  20. Disconnect the 2 retainers from the A/C discharge hose.

  21. Object Number: 520470  Size: SH
  22. Remove the 2 electric cooling fan mounting bolts.
  23. Important: Care should be taken when removing the cooling fan assembly not to damage the lower attachment points of both the cooling fan assembly and radiator.

  24. Remove the electric cooling fan assembly from the vehicle in the following order:
  25. 17.1. Position the cooling fan assembly towards the left side of the vehicle.
    17.2. Pull upward on the right side of the fan assembly.
    17.3. Position the fan assembly towards the right side of the vehicle.
    17.4. Pull upward on the fan assembly removing the fan assembly from the vehicle.

Installation Procedure


    Object Number: 520470  Size: SH

    Important: Care should be taken when installing the cooling fan assembly not to damage the lower attachment points of both the cooling fan assembly and radiator.

  1. Install the cooling fan assembly to the vehicle in the following order:
  2. 1.1. Position the cooling fan assembly behind the radiator.
    1.2. Position the fan assembly towards the right side of the vehicle.
    1.3. Push downward on the right side of the fan assembly.
    1.4. Move the fan assembly into position, aligning the lower feet of the fan shroud to the mounting tabs on the radiator.

    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.

    Important: The bolts retaining the cooling fan to the radiator end tanks are a special length and should be the ONLY bolts used upon reinstallation. The use of longer bolts will damage the radiator end tanks.

  3. Install the electric cooling fan mounting bolts.
  4. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 520468  Size: SH
  5. Connect the 2 retainers to the A/C discharge hose.
  6. Connect the wiring harness electrical connectors (1) to the cooling fan motors.
  7. Attach the wiring harness retaining clips (2) to the fan shroud.

  8. Object Number: 430130  Size: SH
  9. Push the upper transaxle oil cooler pipe into the radiator quick connect fitting, until a "click" is heard.
  10. Tug gently on the cooler pipe to ensure proper retention.
  11. Slide the plastic cap (1) over the quick connect joint.

  12. Object Number: 566627  Size: SH
  13. Install the upper transaxle oil cooler pipe retaining bolt to the fan shroud.
  14. Tighten
    Tighten the bolt to 6 N·m (53 lb in).


    Object Number: 518549  Size: SH
  15. Connect the upper engine oil cooler pipe to the radiator.
  16. Tighten
    Tighten the fitting to 18 N·m (13 lb ft).


    Object Number: 518339  Size: SH
  17. Position the J 38543  (3) to the clamp in order to connect the inlet radiator hose (2) to the radiator (1).
  18. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  19. Object Number: 518548  Size: SH
  20. Install the engine oil cooler pipe retaining clip and bolt to the fan shroud.
  21. Tighten
    Tighten the bolt to 6 N·m (53 lb in).

  22. Install the air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  23. Lower the vehicle.
  24. Install the upper radiator support. Refer to Front End Upper Tie Bar Replacement in Body Front End.
  25. Fill the cooling system. Refer to Cooling System Draining and Filling .
  26. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  27. Inspect the engine oil level.