Electric Cooling Fan Pontiac/Buick

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. Inspect the abnormal noise or the vibration if felt from the engine compartment. Check for dirt or the mud build up on fan blades.
2. Clean the dirt or mud build up from the fan blades if abnormal noise or vibration is felt from the engine compartment.
3. Remove the air cleaner and the duct assembly. Refer to Air Filter Element and Air Cleaner Assembly or Air Cleaner Element in Engine Controls.



4. Disconnect the wiring harness from the fan motors and the clips.



5. Remove the fan mounting bolts.
6. Remove the fans.

1. Install the fans.
2. Install the fan mounting bolts.

Tighten
Tighten the bolts to 6 N·m (53 lb in).

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. Connect the wiring harness to the fan motors and the clips.
4. Install the air cleaner and the duct assembly. Refer to Air Filter Element and Air Cleaner Assembly or Air Cleaner Element in Engine Controls.
5. Inspect the fan motors for proper operation.

Electric Cooling Fan Chevrolet/Oldsmobile

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. Inspect the abnormal noise or the vibration if felt from the engine compartment. Check for dirt or the mud build up on fan blades.
2. Clean the dirt or mud build up from the fan blades if abnormal noise or vibration is felt from the engine compartment.
3. Remove the air cleaner and the duct assembly. Refer to Engine Controls Table of Contents.



4. Disconnect the wiring harness from the fan motors and the clips.



5. Remove the fan mounting bolts.
6. Remove the fans.

1. Install the fans.
2. Install the fan mounting bolts.

Tighten
Tighten the bolts to 6 N·m (53 lb in).

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. Connect the wiring harness to the fan motors and the clips.
4. Install the air cleaner and the duct assembly. Refer to Engine Controls Table of Contents.
5. Inspect the fan motors for proper operation.