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. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
2. Remove the engine mount strut. Refer to Engine Mount Strut Replacement in Engine Mechanical - 3.5L.



3. Disconnect the cooling fan wiring harness from the engine wiring harness.
4. Reposition the wiring harness at the upper radiator support.
5. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.5L.



6. Remove the cooling fan shroud bolts.
7. Remove the LH radiator bracket.
8. Remove the cooling fan shroud with the electric cooling fan motors and cooling fan.



9. Disconnect the cooling fan wiring harness from each cooling fan motor.



10. Remove the cooling fan heat shield.



11. Remove the cooling fan blade nuts.
12. Remove the cooling fan blades.
13. Inspect the cooling fans for the following conditions:

13.1.

Bent or cracked cooling fan blades

13.2.

Smoothness of the cooling fan blade mating surfaces

13.3.

Remove burrs or other imperfections as necessary

1. Install the cooling fan blades.

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.

2. Install the cooling fan blade nuts.

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




3. Connect the cooling fan heat shield.



4. Connect the cooling fan wiring harness to each cooling fan motor.



5. Install the cooling fan shroud with the electric cooling fan motors and cooling fans.
6. Install the LH radiator bracket.
7. Install the LH radiator bracket bolt.

Tighten
Tighten the bolt to 10 N·m (89 lb in).

8. Connect the cooling fan shroud bolts.

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

9. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.5L.
10. Install the wiring harness at the upper radiator support.



11. Connect the cooling fan wiring harness to the engine wiring harness.
12. Install the engine mount strut bracket to the upper radiator support. Refer to Engine Mount Strut Replacement in Engine Mechanical - 3.5L.
13. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.