Radiator Cooling Fan: Service and Repair

RADIATOR FAN

REMOVAL

WARNING: DO NOT REMOVE THE CYLINDER BLOCK PLUG OR THE RADIATOR DRAINCOCK WITH THE SYSTEM HOT AND UNDER PRESSURE BECAUSE SERIOUS BURNS FROM COOLANT CAN OCCUR.

1. Disconnect negative cable from battery.
2. Drain cooling system below the upper radiator hose level.





3. Remove upper hose from radiator (Fig. 24).
4. Remove fasteners that attach air cleaner housing to vehicle. Reposition air cleaner housing.
5. Raise vehicle on hoist.
6. Disconnect and remove the Powertrain Control Module (PCM) with bracket.





7. Disconnect radiator fan electrical connector (Fig. 25).
8. Lower vehicle.
9. Remove radiator upper support mounts (Fig. 24).





10. Remove air conditioning line support bracket screw (Fig. 26).
11. Remove radiator fan assembly screws from radiator (Fig. 24).
12. Carefully lift radiator fan assembly up and out of lower shroud attachment clips.
13. For radiator fan assembly sub-component removal procedures (Refer to - COOLING/ENGINE/ RADIATOR FAN - DISASSEMBLY).

DISASSEMBLY
The radiator fan assembly consist of the following three components: fan, fan motor, and shroud.

FAN
There are no repairs to be made to the fan. If the fan is warped, cracked, or otherwise damaged, it must be replaced with only the recommended part for adequate strength, performance and safety.
1. Remove radiator fan assembly.








2. Remove fan hub retaining nut (Fig. 27) or (Fig. 28).
3. Remove fan from motor shaft.

FAN MOTOR
1. Remove radiator fan assembly.
2. Remove fan from motor shaft.





3. Remove screw attaching the in-rush current suppressor (Fig. 29).
4. Remove screws attaching motor to shroud (Fig. 29).
5. Remove the fan motor.

SHROUD
1. Remove radiator fan assembly.
2. Remove the FAN.
3. Remove the FAN MOTOR.

ASSEMBLY

FAN
There are no repairs to be made to the fan. If the fan is warped, cracked, or otherwise damaged, it must be replaced with only the recommended part for adequate strength, performance and safety.
1. Install fan on motor shaft.
2. Install fan retaining nut and tighten to 6.2 Nm (55 inch lbs.) (Fig. 27) or (Fig. 28).
3. Install radiator fan assembly.

FAN MOTOR
1. Install the fan motor on shroud and tighten screws to 3.8 Nm (34 inch lbs.) (Fig. 29).
2. Install screw attaching the in-rush current suppressor and tighten to 2.6 Nm (23 inch lbs.) (Fig. 29).
3. Install the fan on motor shaft.
4. Install the radiator fan assembly.

SHROUD
1. Install the FAN MOTOR.
2. Install the FAN.
3. Install the radiator fan assembly.

INSTALLATION








1. Install radiator fan assembly by lowering into position on radiator. Ensure the fan assembly lower mounts (Fig. 21) or (Fig. 22) are engaged properly into slots on lower radiator tank.
2. Install the radiator fan assembly retaining screws and tighten to 7.5 Nm (65 inch lbs.) (Fig. 24).
3. Install radiator upper support mounts (Fig. 24) and tighten bolts to 10 Nm (90 inch lbs.).
4. Install air conditioning line support bracket screw (Fig. 26).
5. Raise vehicle on hoist.
6. Connect radiator fan electrical connector (Fig. 25).
7. Install Powertrain Control Module (PCM).
8. Lower vehicle.
9. Install air cleaner housing fasteners.
10. Install radiator upper hose to radiator (Fig. 24). Align hose and position clamp to ensure proper clearance with engine or hood.
11. Fill cooling system.
12. Connect negative battery cable.