GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 37097-A Hose Clamp Remover/Installer
    • J 41623-A Cooler Quick Connect Tool

    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.

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

  4. Object Number: 130735  Size: SH
  5. Remove the engine oil cooler line retaining bolt and retainer from the fan shroud.
  6. Lower the vehicle.
  7. Remove the hood latch support. Refer to Hood Latch Support Replacement in Body Front End.
  8. Remove the headlamps. Refer to Headlamp Replacement in Lighting Systems.

  9. Object Number: 571144  Size: SH
  10. Disconnect the lower engine oil cooler line from the radiator, and position aside.

  11. Object Number: 571143  Size: SH
  12. Disconnect the upper engine oil cooler line from the radiator, and position aside.

  13. Object Number: 518339  Size: SH
  14. Position the J 37097-A  (3) to the clamp in order to remove the inlet radiator hose (2) from the radiator (1), and place aside over the engine.
  15. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-4.6 L.

  16. Object Number: 566627  Size: SH
  17. Remove the upper transaxle oil cooler line retaining bolt from the fan shroud.
  18. Slide the plastic cap off the upper transaxle oil cooler line quick connect fitting.
  19. Disconnect the upper transaxle oil cooler line from the radiator using the J 41623-A .

  20. Object Number: 130758  Size: SH
  21. Position the J 37097-A to the clamp in order to remove the outlet radiator hose from the radiator.
  22. Disconnect the lower transaxle oil cooler line from the radiator.

  23. Object Number: 130784  Size: SH
  24. Remove the radiator bracket mounting bolts.
  25. Remove the radiator mounting brackets.
  26. In order to remove the fan shroud, position the radiator/A/C condenser assembly as follows:
  27. • Lift the assembly from the lower radiator support pads.
    • Tilt the top of the assembly forward.

    Object Number: 520468  Size: SH
  28. Disconnect the wiring harness electrical connectors (1) from the cooling fan motors.
  29. Remove the clips (2) attaching the harness to the fan shroud.
  30. Disconnect the retaining clip attaching the A/C discharge hose to the fan shroud.

  31. Object Number: 520470  Size: SH
  32. Remove the two fan shroud mounting bolts.
  33. 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.

  34. Remove the cooling fan assembly from the vehicle in the following order:
  35. 24.1. Position the cooling fan assembly towards the right side of the vehicle.
    24.2. Pull upward on the right side of the fan assembly.
    24.3. Position the fan assembly towards the left side of the vehicle.
    24.4. Pull upward on the fan assembly removing it from the vehicle.

    Object Number: 334274  Size: SH

    Important: The fan blade retaining nut is left hand thread, damage may occur to motor threads if attempting to remove as a right hand thread nut.

  36. Remove the fan blade retaining nut (5) from the motor (2).
  37. Remove the fan blade (4) from the motor shaft.
  38. Remove the motor retaining screws (3).
  39. Remove the motor (2) from the shroud (1).

Installation Procedure


    Object Number: 334274  Size: SH
  1. Install the motor (2) to the shroud (1).
  2. 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 motor retaining screws (3).
  4. Tighten
    Tighten the electric cooling fan motor mounting screws to 6 N·m (53 lb in).

  5. Install the fan blade (4) to the motor shaft.
  6. Install the fan blade retaining nut (5) to the motor (2).
  7. Tighten
    Tighten the electric cooling fan blade retaining nut to 6 N·m (53 lb in).


    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.

  8. Install the cooling fan assembly to the vehicle in the following order:
  9. 5.1. Position the cooling fan assembly behind the radiator.
    5.2. Position the fan assembly towards the left side of the vehicle.
    5.3. Push downward on the right side of the fan assembly.
    5.4. Move the fan assembly into position, aligning the lower feet of the fan shroud to the mounting tabs on the radiator.

    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.

  10. Install the cooling fan mounting bolts.
  11. Tighten
    Tighten the cooling fan mounting bolts to 6 N·m (53 lb in).


    Object Number: 520468  Size: SH
  12. Connect the retaining clip attaching the A/C discharge hose to the fan shroud.
  13. Connect the wiring harness electrical connectors (1) to the cooling fan motors.
  14. Attach the wiring harness retaining clips (2) to the fan shroud.

  15. Object Number: 130784  Size: SH
  16. Position the radiator/A/C assembly to the lower radiator support pads
  17. Install the radiator mounting brackets.
  18. Install the radiator bracket mounting bolts.
  19. Tighten
    Tighten the mounting bolt to 9 N·m (80 lb in).


    Object Number: 527526  Size: SH
  20. Connect the lower transaxle oil cooler line to the radiator.
  21. Important: Ensure the lower transaxle oil cooler line is positioned upwards while tightening.

    Tighten
    Tighten the transaxle oil cooler line to 35 N·m (26 lb ft).


    Object Number: 130758  Size: SH
  22. Position the J 37097-A to the clamp in order to connect the outlet radiator hose to the radiator.

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

  27. Object Number: 566627  Size: SH
  28. Install the upper transaxle oil cooler line retaining bolt to the fan shroud.
  29. Tighten
    Tighten the transaxle oil cooler line retaining bolt to 6 N·m (53 lb in).

  30. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-4.6 L.

  31. Object Number: 518339  Size: SH
  32. Position the J 37097-A  (3) to the clamp in order to connect the inlet radiator hose (2) to the radiator (1).

  33. Object Number: 571143  Size: SH
  34. Connect the upper engine oil cooler line to the radiator.
  35. Tighten
    Tighten the engine oil cooler line to 18 N·m (13 lb ft).


    Object Number: 571144  Size: SH
  36. Connect the lower engine oil cooler line to the radiator.
  37. Tighten
    Tighten the engine oil cooler line to 18 N·m (13 lb ft).

  38. Install the headlamps. Refer to Headlamp Replacement in Lighting Systems.
  39. Install the hood latch support. Refer to Hood Latch Support Replacement in Body Front End.
  40. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  41. Object Number: 130735  Size: SH
  42. Install the engine oil cooler line retaining clip and bolt to the fan shroud.
  43. Tighten
    Tighten the engine oil cooler line retaining bolt to 6 N·m (53 lb in).

  44. Install the air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  45. Lower the vehicle.
  46. Fill the cooling system. Refer to Cooling System Draining and Filling .
  47. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  48. Check the engine oil level.