GM Service Manual Online
For 1990-2009 cars only

Engine Coolant Fan Replacement Gasoline

Removal Procedure

    Caution: Refer to Electric Coolant Fan Caution in the Preface section.

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1375438  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the air cleaner inlet hose bolts.
  3. Remove the air cleaner inlet hose.

  4. Object Number: 1375440  Size: SH
  5. Drain the coolant. Refer to Cooling System Draining and Filling .
  6. Disconnect the upper radiator hose.

  7. Object Number: 1375441  Size: SH
  8. Disconnect the cooling fan electrical connector.

  9. Object Number: 1375442  Size: SH
  10. Remove the fan shroud assembly upward and remove the fan shroud assembly from the vehicle.

Installation Procedure


    Object Number: 1375442  Size: SH

    Caution: If a fan blade is bent or damaged in any way, do not repair or reuse the damaged part. Always replace a bent or damaged fan blade. Fan blades that have been damaged can not be assured of proper balance and could fail and fly apart during subsequent use. This creates an extremely dangerous situation.

    The fan blades must remain in proper balance. You cannot assure fan blade balance once a fan blade has been bent or damaged. A fan blade that is not in proper balance could fail and fly apart during use, creating an extremely dangerous situation.

    Important: Be careful to seat the mounting post on the fan shroud into the socket at the radiator left tank. Be sure to slip the tap at the bottom edge of the shroud into the retaining clip near the center of the radiator.

  1. Install the fan shroud assembly to the radiator.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Secure the shroud to the top of the radiator with the mounting bolts.
  4. Tighten
    Tighten the fan assembly mounting bolts to 4 N·m (35 lb in).


    Object Number: 1375441  Size: SH
  5. Connect the cooling fan electrical connector.

  6. Object Number: 1375440  Size: SH
  7. Connect the upper radiator hose.

  8. Object Number: 1375438  Size: SH
  9. Install the air cleaner inlet hose.
  10. Install the air cleaner inlet hose bolts.
  11. Tighten
    Tighten the air cleaner inlet hose bolts to 6 N·m (53 lb in).

  12. Connect the negative battery cable.

Engine Coolant Fan Replacement Diesel

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1863838  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the beauty cover. Refer to Engine Cover Replacement .
  3. Remove the charge air system hoses and ducts. Refer to Charge Air Cooler Inlet Pipe and Outlet Pipe Replacement .
  4. Remove the battery and battery tray. Refer to Battery Tray Replacement .
  5. Remove the underhood auxiliary fuse block.

  6. Object Number: 1863839  Size: SH
  7. Disconnect the main cooling fan electrical connector.
  8. Remove the cooling fan shroud mounting bolts.
  9. Remove the cooling fan assembly upward.

Installation Procedure


    Object Number: 1863839  Size: SH

    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. Install the cooling fan to the radiator.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the cooling fan assembly retaining bolts.
  4. Tighten
    Tighten the cooling fan assembly bolts to 4 N·m (35 lb in).


    Object Number: 1863838  Size: SH
  5. Install the underhood auxiliary fuse block.
  6. Install the battery and battery tray. Refer to Battery Tray Replacement .
  7. Install the charge air system hoses and ducts. Refer to Charge Air Cooler Inlet Pipe and Outlet Pipe Replacement .
  8. Install the engine cover. Refer to Engine Cover Replacement .
  9. Connect the negative battery cable.