Radiator Fan Assembly

1 - Upper seal board
2 - Radiator reservoir hose
3 - Radiator reservoir
4 - Fan motor connector
5 - Cooling fan assembly
6 - Condenser fan assembly
7 - Oil cooler hose
8 - Radiator hose
9 - Radiator bracket
10 - Radiator

Car Parts Diagram

It could be an air pocket in the cooling system.

Turbo Radiator Fan

The radiator cooling fan is a variable speed electric motor driven fan. The radiator fan assembly includes an electric motor, fan blade, and a support shroud that is attached to the radiator. The radiator fan is serviced as an assembly (fan motor/fan/shroud).

The variable speed radiator fan is controlled by the Powertrain Control Module (PCM) by way of a Pulse Width Modulated (PWM) signal. The duty cycle ranges from 30% for low speed operation then ramps-up to 100% for high-speed operation. This fan control system provides infinitely variable fan speeds, allowing for improved fan noise, A/C performance, better engine cooling, and additional vehicle power.

To control radiator fan operation, the PCM looks at inputs from:

Engine coolant temperature
A/C pressure transducer
Ambient temperature
Vehicle speed
Transmission oil temperature (automatic transmission only

HENCE CHECK THE PCM

1. Remove or disconnect the following:

• Disconnect negative battery cable.
  
• Drain cooling system.
  
• Upper radiator hose .
  
• Upper radiator closure panels.
  
• Radiator fan assembly .
  
• Radiator fan electrical connector.
  

2. Raise the vehicle

3. Remove or disconnect the following:

• Lower splash shield.
  
• Lower radiator hose.
  
• Lower condenser mount bolts
  

4. Lower vehicle.
5.Remove or disconnect the following:

• Upper radiator mounting brackets and bolts.
• Upper condenser mounting bolts.
  

6. Separate condenser assembly from radiator.
7. Tilt radiator toward engine and remove radiator from vehicle.

Clean radiator fins are necessary for good heat transfer. The radiator and air conditioning fins should be cleaned when an accumulation of debris has occurred. With the engine cold, apply cold water and compressed air to the back (engine side) of the radiator to flush the radiator and/or A/C condenser of debris. The installation of the new radiator is the opposite of the removal. Please upvote if this was helpful. :)

Removal & Installation To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Remove or disconnect the following:
   • Radiator upper crossmember
   • Fan motor electrical connector
3. Drain cooling system below the level of the upper radiator hose.
4. Remove or disconnect the following:
   • Upper radiator hose from radiator
   • Radiator fan fasteners and upper clip
   • Fan assembly by lifting upward to clear radiator

To Install:

1. Install or connect the following:
   • Radiator fan assembly
   • Upper clip and fasteners
   • Upper radiator hose to radiator
   • Fan motor electrical connector
   • Radiator upper crossmember
2. Fill cooling system.

Radiator Aluminum Core, Crossflow — 3.8L (Base) and 4.6L Engines
Removal

1. Drain engine cooling system as described. Disconnect upper radiator hose (8260) and lower radiator hose (8286) and radiator overflow hose (8075) from the radiator (8005). Disconnect the transmission oil cooler inlet and outlet lines from the radiator.
   

1. Remove cooling fan motor,fan blade (8600) and fan shroud (8146) assembly as described.
   

1. Remove radiator upper bracket retaining bolts and remove bracket. Lift radiator from vehicle.
   

Installation

1. Position the radiator into the vehicle. Install upper brackets and tighten bolts securely.
   

1. Connect the transmission oil cooler lines to the transmission oil cooler fittings.
   

1. Install cooling fan motor, fan blade and fan shroud assembly as described.
   

Engine Cooling Fan Motor, Fan Blade and Fan Shroud Assembly, Electrical Removal

1. Disconnect (pull apart) the male-female cooling fan motor wiring connector at the side of the fan shroud (8146). Remove the male terminal connector retaining clip from the fan shroud mounting tab.
   

1. Remove two fan shroud upper retaining bolts at the radiator tanks.
   

1. Lift cooling fan motor/fan blade (8600)/fan shroud assembly past radiator (8005), disengaging fan shroud from two lower retaining clips.
   

Installation

1. Follow removal procedure in reverse order.
   

1. Tighten fan shroud retaining bolts to 5.2-7.2 Nm (46-63 lb-in).
   
   

HOPE THIS HELPS.

This is a fan module(relay)It should be ,if you are standing in front of van,and facing motor,down to your right.Look under the van,up at the radiator,and you should see it.I think if you follow the wires from the fans,it will go right to it.If the module went out,chances are one of the fans are bad.to replace the fans order the fan assembly.If you try to replace one fan in the fan assembly,the blade will break.Then you will be stuck with a motor you bought,and need the whole assembly.If I can help,let me know.

if the fan is not going on then this is most definatley your problem. The water in the engine and radiator circulates around the inside of the engine block, drawing away heat and carrying it to the radiator, if the fan is not working to draw air across the radiator and dissapate the heat then you will overheat. Try checking the radiator fan fuses in the underhood fuse and relay box, if there all good check that the fans are indeed not coming on. they will start when the thermostat opens and close when it does. if no fan operation, check for power at the fan plug, if not change the fan assembly.

Likely the fan(s) not turning on when engine gets hot. Is the check engine light on? Read the code(s) and repair as needed. Check (when cold) the fan(s) for free turning--if seem bound or hard to turn, replace the ailing fan. Check the radiator and reservoir fluid level. Watch the fans as the engine heats up. Feel the radiator area where the upper engine hose connects. It will suddenly turn hot when the thermostat opens. The fan assembly should activate somewhat after. Hopefully, the engine code recognized a defective temp sensor and was replaced.

The fan shroud may be warped from the heat. If it is you have to replace the fan assembly. Just replaced mine today. Fan was $200 aftermarket. Job was relatively easy after removing the bolts on the long plate that runs over the radiator. Took around 2 hrs to do. -C