GM Service Manual Online
For 1990-2009 cars only

Cooling Fan and Shroud Replacement w/PWM

Removal Procedure

Warning: 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

Warning: To help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan blade or housing should always be replaced.

Warning: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Remove the radiator support. Refer to Radiator Support Replacement.
  2. Disconnect the engine wiring harness from the cooling fan shroud.
  3. Disconnect the surge tank outlet hose from the retaining clips on the cooling fan shroud.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  5. Remove the stabilizer shaft. Refer to Stabilizer Shaft Replacement.

  6. Object Number: 1500599  Size: SH
  7. Disconnect the cooling fan electrical connector.
  8. Disconnect the lower transmission oil cooler line from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Connector Replacement.

  9. Object Number: 1527325  Size: SH
  10. Remove the cooling fan shroud retaining bolts.
  11. Remove the cooling fan and shroud.

Installation Procedure

    Note: Ensure the cooling fan and shroud tis properly seated on the radiator

  1. Install the cooling fan and shroud.
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1527325  Size: SH
  3. Install the cooling fan shroud retaining bolts and tighten to 5 N·m (44 lb in).
  4. Install the lower transmission oil cooler line. Refer to Transmission Fluid Cooler Hose/Pipe Connector Replacement.

  5. Object Number: 1500599  Size: SH
  6. Connect the cooling fan electrical connector.
  7. Install the stabilizer shaft. Refer to Stabilizer Shaft Replacement.
  8. Lower the vehicle.
  9. Connect the surge tank outlet hose to the retaining clips on the cooling fan shroud.
  10. Connect the engine wiring harness to the cooling fan shroud.
  11. Install the radiator support. Refer to Radiator Support Replacement.

Cooling Fan and Shroud Replacement w/o PWM

Removal Procedure

Warning: 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

Warning: To help avoid personal injury or damage to the vehicle, a bent, cracked, or damaged fan blade or housing should always be replaced.

Warning: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Remove the radiator support. Refer to Radiator Support Replacement.
  2. Disconnect the engine wiring harness from the cooling fan shroud.
  3. Disconnect the surge tank outlet hose from the retaining clips on the cooling fan shroud.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  5. Remove the stabilizer shaft. Refer to Stabilizer Shaft Replacement.

  6. Object Number: 928839  Size: SH
  7. Disconnect the cooling fan electrical connector (1).
  8. Disconnect the lower transmission oil cooler line from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Connector Replacement.
  9. Note: Lift up on the cooling fan and shroud to disengage the retaining tabs from the radiator

  10. Remove the cooling fan and shroud.

Installation Procedure

    Note: Ensure the cooling fan and shroud tis properly seated on the radiator

  1. Install the cooling fan and shroud.
  2. Install the lower transmission oil cooler line. Refer to Transmission Fluid Cooler Hose/Pipe Connector Replacement.

  3. Object Number: 928839  Size: SH
  4. Connect the cooling fan electrical connector (1).
  5. Install the stabilizer shaft. Refer to Stabilizer Shaft Replacement.
  6. Lower the vehicle.
  7. Connect the surge tank outlet hose to the retaining clips on the cooling fan shroud.
  8. Connect the engine wiring harness to the cooling fan shroud.
  9. Install the radiator support. Refer to Radiator Support Replacement.