GM Service Manual Online
For 1990-2009 cars only

Engine Coolant Fan Shroud Replacement L26

Tools Required

J 38185 Hose Clamp Plier

Removal Procedure

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the condenser. Refer to Condenser Replacement .
  3. Remove the upper tie bar. Refer to Front End Upper Tie Bar Replacement .
  4. Drain the cooling system. Refer to Cooling System Draining and Filling .
  5. Remove the front air deflector. Refer to Front Air Deflector Replacement .

  6. Object Number: 1684225  Size: SH
  7. Remove the transmission oil cooler pipe retaining bolts from the fan shroud.
  8. Lower the vehicle.

  9. Object Number: 1684243  Size: SH
  10. Using J 38185 reposition the radiator inlet hose clamp.
  11. Disconnect the radiator inlet hose from the radiator.

  12. Object Number: 1684262  Size: SH
  13. Slide the transmission oil cooler line caps reward to access the lines to the radiator.
  14. Remove the transmission oil cooler lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

  15. Object Number: 520468  Size: SH
  16. Disconnect the wiring harness electrical connectors (1) from the cooling fan motors.
  17. Remove the clips (2) attaching the harness to the fan shroud.

  18. Object Number: 1664674  Size: SH
  19. Remove the fan shroud mounting bolts.

  20. Object Number: 1664676  Size: SH

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

  21. Remove the fan shroud assembly from the vehicle in the following order:
  22. 15.1. Position the fan shroud assembly towards the left side of the vehicle.
    15.2. Pull upward on the right side of the fan shroud assembly.
    15.3. Position the fan shroud assembly towards the right side of the vehicle.
    15.4. Pull upward on the fan shroud assembly removing the fan shroud assembly from the vehicle.
  23. Remove the cooling fan motors when replacing the fan shroud assembly. Refer to Engine Coolant Fan Motor Replacement .

Installation Procedure

  1. Install the cooling fan motors when replacing the fan shroud assembly. Refer to Engine Coolant Fan Motor Replacement .

  2. Object Number: 1664676  Size: SH

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

  3. Install the fan shroud assembly to the vehicle in the following order:
  4. 2.1. Position the fan shroud assembly behind the radiator.
    2.2. Position the fan shroud assembly towards the right side of the vehicle.
    2.3. Push downward on the right side of the fan shroud assembly.
    2.4. Move the fan shroud assembly into position, aligning the lower feet of the fan shroud to the mounting tabs on the radiator.

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1664674  Size: SH

    Important: The bolts retaining the 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.

  5. Install the fan shroud mounting bolts.
  6. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 520468  Size: SH
  7. Connect the wiring harness electrical connectors (1) to the cooling fan motors.
  8. Attach the wiring harness retaining clips (2) to the fan shroud.

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

  13. Object Number: 1684243  Size: SH
  14. Install the radiator inlet hose to the radiator.
  15. Using J 38185 reposition the radiator inlet hose clamp.
  16. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

  17. Object Number: 1684225  Size: SH
  18. Install the transmission oil cooler pipe retaining bolts to the fan shroud.
  19. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 1684254  Size: SH
  20. Install the radiator outlet hose to the radiator.
  21. Using J 38185 reposition the radiator outlet hose clamp.
  22. Install the front air deflector. Refer to Front Air Deflector Replacement .
  23. Lower the vehicle.
  24. Install the upper tie bar. Refer to Front End Upper Tie Bar Replacement .
  25. Install the condenser. Refer to Condenser Replacement .
  26. Fill the cooling system. Refer to Cooling System Draining and Filling .
  27. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  28. Inspect the transmission oil level.

Engine Coolant Fan Shroud Replacement LD8

Tools Required

J 38185 Hose Clamp Plier

Removal Procedure

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the condenser. Refer to Condenser Replacement .
  3. Remove the upper tie bar. Refer to Front End Upper Tie Bar Replacement .
  4. Drain the cooling system. Refer to Cooling System Draining and Filling .
  5. Remove the front air deflector. Refer to Front Air Deflector Replacement .
  6. Lower the vehicle.

  7. Object Number: 1664555  Size: SH
  8. Using J 38185 reposition the radiator inlet hose clamp.
  9. Disconnect the radiator inlet hose from the radiator.

  10. Object Number: 1664559  Size: SH
  11. Remove the transmission oil cooler pipe retaining bolts from the fan shroud.
  12. Remove the transmission lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

  13. Object Number: 520468  Size: SH
  14. Disconnect the wiring harness electrical connectors (1) from the cooling fan motors.
  15. Remove the clips (2) attaching the harness to the fan shroud.

  16. Object Number: 1664674  Size: SH
  17. Remove the fan shroud mounting bolts.

  18. Object Number: 1664676  Size: SH

    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.

  19. Remove the fan shroud assembly from the vehicle in the following order:
  20. 14.1. Position the fan shroud assembly towards the left side of the vehicle.
    14.2. Pull upward on the right side of the fan shroud assembly.
    14.3. Position the fan shroud assembly towards the right side of the vehicle.
    14.4. Pull upward on the fan shroud assembly removing the fan shroud assembly from the vehicle.

Installation Procedure


    Object Number: 1664676  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 fan shroud assembly to the vehicle in the following order:
  2. 1.1. Position the fan shroud assembly behind the radiator.
    1.2. Position the fan shroud assembly towards the right side of the vehicle.
    1.3. Push downward on the right side of the fan shroud assembly.
    1.4. Move the fan shroud assembly into position, aligning the lower feet of the fan shroud to the mounting tabs on the radiator.

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1664674  Size: SH

    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 fan shroud mounting bolts.
  4. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 520468  Size: SH
  5. Connect the wiring harness electrical connectors (1) to the cooling fan motors.
  6. Attach the wiring harness retaining clips (2) to the fan shroud.

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

  11. Object Number: 1664559  Size: SH
  12. Install the transmission oil cooler pipe retaining bolts to the fan shroud.
  13. Tighten
    Tighten the bolts to 6 N·m (53 lb in).


    Object Number: 1664555  Size: SH
  14. Install the radiator inlet hose to the radiator.
  15. Using J 38185 reposition the radiator inlet hose clamp.
  16. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  17. Install the front air deflector. Refer to Front Air Deflector Replacement .
  18. Lower the vehicle.
  19. Install the upper tie bar. Refer to Front End Upper Tie Bar Replacement .
  20. Install the condenser. Refer to Condenser Replacement .
  21. Fill the cooling system. Refer to Cooling System Draining and Filling .
  22. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  23. Inspect the engine oil level.