Ford Mustang Mach-E Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functional Radiator Fan in Your Ford Mustang Mach-E and How to Fix It

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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 Ford Mustang Mach-E 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 Ford Mustang Mach-E 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.

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 Ford Mustang Mach-E

When troubleshooting radiator fan issues in your Ford Mustang Mach-E, it's essential to adopt a methodical diagnostic approach. Begin by checking the fuse associated with the radiator fan; a blown fuse is a straightforward fix that can often resolve the problem. If the fuse is intact, proceed to test the fan motor and other critical components such as the fan relay and coolant temperature sensor. Inspect the wiring for any signs of damage or short circuits, as these can disrupt the fan's operation. Additionally, verify that the electrical system is providing adequate voltage to the fan components. If your vehicle's computer is programmed to activate the fan when the air conditioning is on, test this feature to see if the fan responds appropriately. By following these steps, you can effectively identify and address the root cause of radiator fan issues, ensuring your cooling system operates efficiently.

What to Do When the Radiator Fan Isn't Working in a Ford Mustang Mach-E?

When troubleshooting a non-working radiator fan in your Ford Mustang Mach-E, it's important to recognize the common problems that may be causing the issue. Start by checking the fuse associated with the radiator fan, as a blown fuse is a frequent and easily fixable problem. If the fuse is intact, the next step is to inspect the fan motor and its electrical connections, particularly looking for signs of overheating or melted plugs, which have been reported in some models. Additionally, ensure that all related fuses and relays are functioning properly, as any malfunction in these components can prevent the fan from operating. A practical test involves turning on the air conditioning; if the fan activates, it indicates that the fan itself is likely working, suggesting that the problem may lie within the AC or cooling system. By methodically addressing these common issues, you can effectively diagnose and potentially resolve the radiator fan problem in your Mustang Mach-E.

Why is the Radiator Fan Not Working in a Ford Mustang Mach-E?

When the radiator fan in your Ford Mustang Mach-E fails to operate, it is crucial to address the issue promptly to avoid severe engine damage. A malfunctioning fan can lead to overheating, which may cause the engine to seize or result in costly repairs. Common culprits include a faulty fan assembly, a defective fan clutch, or a malfunctioning coolant temperature sensor. Additionally, electrical issues such as a blown fuse, a bad relay, or damaged wiring can disrupt the fan's operation. If you notice symptoms like unusual vibrations or a blown fuse, it’s essential to investigate further, as these could indicate deeper problems within the cooling system. Ignoring these signs not only compromises your vehicle's performance but also poses safety risks while driving. Therefore, taking the time to troubleshoot and resolve radiator fan issues is vital for maintaining the health of your Mustang Mach-E and ensuring a safe driving experience.

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Ford Mustang Mach-E Radiator Fan Issues | RepairPal