Engine Coolant Fan Motor Replacement L26

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

Warning: Refer to Damaged Fan Blade Warning in the Preface section.

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

Warning: Keep hands, tools, and clothing away from the electric engine coolant fans in order to help prevent personal injury. These fans are electric and can turn on whether or not the engine is running. The fans can start automatically with the ignition in the ON position.

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
2. Remove the left and right engine mount struts. Refer to Engine Mount Strut Replacement - Left Side and to Engine Mount Strut Replacement - Right Side.
3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
4. Remove the powertrain control module (PCM) harness retainer from the fan shroud.
5. Remove the transmission oil cooler lines from the lower fan shroud clip and reposition the oil cooler lines aside.
6. Remove the fan shroud clip from the condenser tubes.



7. Remove the radiator upper bracket bolts and brackets.



8. Remove the cooling fan shroud bolts.



9. Remove the bolt that connects the fan shroud to the condenser hold down bracket.
10. Disconnect the engine cooling fan motors electrical connectors.
11. Remove the cooling fan electrical harness from the fan shroud clips.
12. Remove the cooling fan shroud.



13. Remove the engine cooling fan blade nut.
14. Remove the engine cooling fan blade.

Warning: 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.
15. Inspect the cooling fan blades for the following conditions:

•	Bent or cracked cooling fan blades

•	Smoothness of the cooling fan blade mating surfaces

•	Remove burrs or other imperfections as necessary




16. Remove the engine cooling fan motor bolts.
17. Remove the engine cooling fan motor.

1. Install the engine cooling fan motor.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the cooling fan motor bolts.

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




3. Install the engine cooling fan blade.
4. Install the engine cooling fan blade nut.

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





Note: Ensure the lower edge of the fan shroud engages the clip at the bottom of the radiator.

5. Install the fan shroud.
6. Install the cooling fan shroud bolts.

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

7. Install the cooling fan electrical harness to the fan shroud clips.
8. Connect the engine cooling fan motors electrical connectors.
9. Install the fan shroud clip to the condenser tubes.



10. Install the bolt that connects the fan shroud to the condenser hold down bracket.

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




11. Install the radiator upper support brackets and bolts.

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

12. Install the transmission oil cooler lines to the retainer at the bottom of the fan shroud.
13. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
14. Install the PCM harness clip on to the fan shroud.
15. Install the engine mount struts. Refer to Engine Mount Strut Replacement - Left Side and to Engine Mount Strut Replacement - Right Side.
16. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
17. Inspect the engine cooling fans for proper operation.

Engine Coolant Fan Motor Replacement LS4

Special Tools

GE-47827 Socket

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

Warning: Refer to Damaged Fan Blade Warning in the Preface section.

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: Refer to Battery Disconnect Warning in the Preface section.

1. Remove the fan shroud assembly from the vehicle. Refer to Engine Coolant Fan Shroud Replacement.




Note: Hold the fan blade to prevent rotation.

2. Using GE-47827 turn the fan motor drive plate in the opposite direction of the arrow on the fan blade until the motor drive plate disengages from the fan blade.
3. Remove and discard the fan blade.




Caution: Failure to tape off all of the entry points to the cooling fan motor(s) will allow debris to enter and damage the motor(s).

Note: When reusing the fan motor tape off the front and rear entry points of the fan motor before drilling the rivets.

4. Center punch each of the rivets (1) from the rear of the motor.
5. Drill the head of the rivets (1) from the fan motor using a 6.35 mm (0.25 in) drill bit.



6. Tap the rivets out of the fan shroud.



7. Remove the fan motor from the fan shroud.

Note: Blow off any excess debris from the fan motor.

8. Remove the tape covering the entry points from the fan motor.

1. Install the engine cooling fan motor to the fan shroud.




Note: Position the fan motor to the fan shroud and insert the bolts from the front side.

2. Install the cooling fan motor bolts.

Caution: Refer to Fastener Caution in the Preface section.

3. Install the cooling fan motor nuts.

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





Caution: Failure to heat the fan hub in hot tap water before installation will result in cooling fan failure due to cracking. Allowing the heated fan to cool for more than one minute prior to installation will also result in failure due to cracking.

Note: Using hot tap water at a minimum of 49°C (120°F), hold the new fan blade hub under the running water for a minimum of 60 seconds to heat the fan blade to the temperature of the water.

Immediately after heating, position the fan blade on the fan motor drive plate.
4. Install the new engine cooling fan blade.

Note: Hold the fan blade to prevent rotation.

5. Using the GE-47827 turn the fan motor drive plate in the same direction of the arrow on the fan blade until the fan motor drive plate engages to the fan blade. Full engagement is attained when the motor drive plate fully occupies the three slots in the face of the fan blade.
6. Rotate the cooling fan blade to ensure proper rotation.
7. Install the fan shroud assembly to the vehicle. Refer to Engine Coolant Fan Shroud Replacement.