2014 Jeep Grand Cherokee Radiator Fan Isn't Working

Radiator fan not working in 2014 Jeep Grand Cherokee: causes and solutions

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Reviewed by
Bo Fader
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 2014 Jeep Grand Cherokee 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 2014 Jeep Grand Cherokee 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.

What steps should I take to diagnose the non-functioning radiator fan in my 2014 Jeep Grand Cherokee?

To effectively diagnose the non-functioning radiator fan in your 2014 Jeep Grand Cherokee, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the fuse associated with the radiator fan, as a blown fuse is a common and easily fixable issue. If the fuse is intact, proceed to inspect the relay, which controls the power to the fan; a malfunctioning relay may need replacement. Next, test the fan motor directly by applying power to it; if it fails to operate, replacement is likely necessary. Additionally, verify the functionality of the temperature sensor, as it plays a crucial role in signaling the fan to activate when the engine reaches a specific temperature. Don’t overlook the wiring connected to the fan; look for any signs of damage or loose connections that could disrupt operation. Finally, using an OBD-II scanner can help you identify any error codes related to the cooling system, providing further insight into the issue. By following this structured approach, you can systematically identify and address the problem with your radiator fan.

What are the common problems that could cause the radiator fan to stop working in a 2014 Jeep Grand Cherokee?

When troubleshooting a non-functioning radiator fan in a 2014 Jeep Grand Cherokee, it's essential to consider several common problems that could be at play. A faulty fan motor is often the primary culprit, as it can fail to spin, leading to engine overheating. Additionally, a blown fuse in the fan circuit can interrupt the power supply, preventing the fan from operating altogether. Inspecting the fan blades is also crucial; any damage or breakage can hinder airflow, compromising the cooling system's efficiency. Another potential issue is a faulty temperature sensor, which may fail to signal the fan to activate when the engine reaches high temperatures. Furthermore, a worn-out relay can disrupt the communication between the fan and the vehicle's electrical system, while a coolant leak can exacerbate overheating problems by reducing the coolant available for circulation. By systematically checking these components, DIYers can effectively diagnose and resolve radiator fan issues, ensuring the engine remains at an optimal temperature.

How urgent is it to repair the non-functioning radiator fan in a 2014 Jeep Grand Cherokee?

When it comes to the non-functioning radiator fan in your 2014 Jeep Grand Cherokee, the urgency of repair cannot be overstated. A malfunctioning fan can severely compromise your engine's cooling system, especially during low-speed driving or when the vehicle is idling. This can lead to overheating, which poses a significant risk of damaging vital engine components such as cylinder heads and head gaskets, resulting in costly repairs. Additionally, dashboard warning lights may illuminate, signaling an overheating condition that demands immediate attention. Ignoring these symptoms not only exacerbates the problem but also places undue stress on the engine and other cooling system parts, potentially leading to further complications. Therefore, it is essential to prioritize the repair or replacement of the radiator fan to maintain optimal engine performance and prevent serious damage. Taking swift action will ensure your vehicle remains reliable and safe on the road.

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