Chrysler Voyager Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functional Radiator Fan in Your Chrysler Voyager and How to Fix It

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
34% chance it's the
Fan Motor or Clutch
0%
28% chance it's the
Fan Relay or Fuse
0%
23% chance it's the
Temp Sensor or Fan Control Module
0%
15% chance it's
Something else
The most common reasons a Chrysler Voyager radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor.
  • Fan Motor or Clutch: A faulty fan motor or a malfunctioning fan clutch can result in inadequate cooling, causing the engine to overheat.
  • Fan Relay or Fuse: A faulty fan relay or blown fuse can prevent the cooling fan from operating, leading to engine overheating.
  • Temp Sensor or Fan Control Module: A faulty temperature sensor or fan control module can result in incorrect readings, causing the engine to overheat or the cooling fan to operate improperly.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a Chrysler Voyager radiator fan isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Over time serpentine belts stretch, crack, and the ribs that ride on the accessory pulleys being to wear smooth. A squealing noise that increases with engine speed or as engine driven accessories are turned on may be noted. The noise is caused by the belt slipping on the pulleys, insufficiently driving them. Ineffective air conditioning, a battery warning light, or intermittent power steering assist can result from this.

»MORE: Symptoms of a bad serpentine belt

The bad thermostat can cause two different sets of problems, depending on whether it's stuck open or stuck closed.

A thermostat that is stuck open can cause the engine to run colder than normal and turn on the check engine light. It may also cause poor fuel mileage and the heater to blow cool air.

A thermostat that is stuck closed will cause the vehicle to overheat. If a new thermostat doesn't resolve engine temperature problems, the cooling system needs to be checked for other issues.

» LEARN MORE: Signs of a bad thermostat, and how to fix it

When the engine coolant temperature sensor fails, it will send inaccurate information to the vehicle’s computer, causing the computer to react to false operating conditions. This will cause the engine to consume more fuel than normal, depleting fuel mileage, and causing black, sooty smoke from the engine under moderate to heavy acceleration. The check engine light will illuminate, and on-board diagnostic trouble codes may be stored for exhaust and emission system failure, fuel delivery system failure, and engine cooling system failure. Overheating may also occur, as the coolant sensor may be leaking fluid out of the engine, creating a an air pocket in the system.

When the radiator fans stop functioning properly, the engine temperature will rise. The spike in temperature will be highest when the vehicle is idling at a stop, but should subside once the vehicle begins moving again.

Additionally, the air conditioner typically won't blow as cold. This is because the air from the radiator fans also blows across the air conditioning condenser, so when the fans fail, both systems suffer.

You'll also usually see the check engine light and notice a drop in fuel economy. It's possible the fan will start making noise if it's failing, as well.

Troubleshooting Radiator Fan Issues in a Chrysler Voyager

When troubleshooting radiator fan issues in your Chrysler Voyager, it's essential to adopt a systematic diagnostic approach. Start by checking the fan components, including the fan motor, fan clutch, and coolant temperature sensor, as these are often the most straightforward culprits. If the fan isn't operating, test the fan motor directly by connecting it to the battery; if it runs, the problem may lie with the fan switch. Next, examine the fan relay by bypassing it to see if the fan activates, which can help isolate the issue. Additionally, verify the functionality of the fan by supplying it with direct power; if it spins, the fan itself is likely in good condition. Lastly, consider the temperature sensor, as a malfunctioning sensor may fail to signal the fan to turn on. By following this methodical approach, you can effectively diagnose and address radiator fan issues, ensuring your Chrysler Voyager runs smoothly.

How to Diagnose a Non-Working Radiator Fan in a Chrysler Voyager?

When diagnosing a non-working radiator fan in a Chrysler Voyager, it's essential to understand the common problems that may arise. One frequent issue is a malfunctioning fan assembly, which can prevent the fan from operating altogether. Additionally, the fan clutch may fail, leading to inadequate cooling when the engine temperature rises. Another critical component to inspect is the coolant temperature sensor; if it is faulty, it may not signal the fan to activate when needed. Electrical issues are also common, so checking the fuses and relays associated with the fan is crucial; a blown fuse or a defective relay can disrupt the fan's operation. Furthermore, physical obstructions can hinder the fan's movement, so ensure that the fan blades can spin freely. If these components appear functional but the fan still does not operate, consider bypassing the relay to test the fan directly. By systematically addressing these common problems, you can effectively diagnose and potentially resolve the issue with your Chrysler Voyager's radiator fan.

Why is the Radiator Fan Not Working in a Chrysler Voyager?

When the radiator fan in your Chrysler Voyager fails to operate, it’s crucial to address the issue promptly to avoid severe engine damage or overheating. A malfunctioning fan can lead to increased engine temperatures, which may cause the engine to overheat, resulting in costly repairs or even complete engine failure. Additionally, if the fan does not engage when the air conditioning is activated, it can lead to inadequate cooling, compromising passenger comfort and safety. Regular maintenance checks can help identify problems with components such as the fan motor, relay, or temperature sensor before they escalate into more significant issues. By being proactive and troubleshooting these common causes, you can ensure your vehicle remains in optimal condition and prevent the potential risks associated with a non-functioning radiator fan.

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