GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

  1. Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection
  2. Remove the radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement .
  3. Remove the Mass Air Flow sensor. Refer to Mass Airflow Sensor/Intake Air Temperature Sensor Replacement for 3.6L engine, or Mass Airflow Sensor/Intake Air Temperature Sensor Replacement for 6.0L engine.
  4. Remove the air intake duct. Refer to Air Cleaner Inlet Duct Replacement for 3.6L engine, or Air Cleaner Inlet Duct Replacement for 6.0L engine.
  5. Remove the radiator inlet hose. Refer to Radiator Inlet Hose Replacement .

  6. Object Number: 1949702  Size: SH
  7. Detach and remove the coolant recovery hose (1) from the coolant recovery hose retaining locks (2).

  8. Object Number: 1949709  Size: SH
  9. Detach the coolant recovery reservoir hose (2) from the coolant recovery reservoir (1).

  10. Object Number: 1949722  Size: SH
  11. Detach the cooling fan motor electrical connector (2), from the main wiring harness (1).
  12. Caution: Refer to Safety Glasses Caution in the Preface section.

    Caution: Refer to Vehicle Lifting Caution in the Preface section.

  13. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

  14. Object Number: 1949682  Size: SH
  15. Detach the transmission cooling hoses (1) from the fan shroud.
  16. Lower the vehicle.

  17. Object Number: 1949678  Size: SH
  18. Remove the fan shroud (3) by pressing down on retaining lugs (1) to release it from the radiator assembly (2).

  19. Object Number: 1949724  Size: SH

    Important: When removing or installing the fan assembly always hold it by the fan motor mounting struts.

    Important: Do not grasp the assembly by the fan rings as this may cause vibrations when the fans are in motion.

  20. While holding the fan motor mounting struts remove the cooling fan and shroud assembly (1).

Installation Procedure


    Object Number: 1949725  Size: SH
  1. Install the cooling fan and shroud assembly (1).
  2. Install the cooling fan and shroud assembly (1) onto the radiator (2) by pushing assembly forward until tabs lock into radiator retaining lugs. Listen for an audible click to confirm fitting.
  3. Caution: Refer to Safety Glasses Caution in the Preface section.

    Caution: Refer to Vehicle Lifting Caution in the Preface section.

  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

  5. Object Number: 1949682  Size: SH
  6. Install the transmission cooling hoses (1) onto the fan assembly.

  7. Object Number: 1949722  Size: SH
  8. Attach the cooling fan electrical connector (2) to the main wiring harness (1).

  9. Object Number: 1949702  Size: SH
  10. Attach the coolant recovery hose (1) into the coolant recovery hose retaining locks (2).
  11. Install the radiator inlet hose. Refer to Radiator Inlet Hose Replacement .
  12. Install the air intake duct. Refer to Air Cleaner Inlet Duct Replacementfor 3.6L engine, or Air Cleaner Inlet Duct Replacement for 6.0L engine.
  13. Install the Mass Air Flow sensor. Refer to Mass Airflow Sensor/Intake Air Temperature Sensor Replacement for 3.6L engine, or Mass Airflow Sensor/Intake Air Temperature Sensor Replacement for 6.0L engine.
  14. Install the radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement .
  15. Connect the battery ground lead to the vehicle. Refer to Battery Negative Cable Disconnection and Connection .
  16. Start and run engine until the cooling fans are activated.