Dodge Magnum Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functional Radiator Fan in Your Dodge Magnum 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 Dodge Magnum 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 Dodge Magnum 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.

Troubleshooting Radiator Fan Issues in a Dodge Magnum

When troubleshooting radiator fan issues in a Dodge Magnum, it's crucial to adopt a methodical diagnostic approach. Start by checking the simplest components first, such as the fuse for the radiator fan, as a blown fuse is a common and easily fixable issue. If the fuse is intact, inspect the wiring for any visible damage or disconnections. Next, assess the fan motor and clutch to ensure they are functioning properly; these components are vital for the fan's operation. If the fan still does not work, test the fan relay, as a faulty relay can prevent the fan from receiving power. Additionally, examine the temperature sensor, which plays a key role in activating the fan at the appropriate times. If all these components check out, consider the fan control module, as it regulates the fan's operation. Lastly, don't overlook the cooling system itself; issues like air pockets or a malfunctioning thermostat can also affect fan performance. By following this structured approach, you can efficiently diagnose and resolve radiator fan issues in your Dodge Magnum, ensuring optimal engine cooling and performance.

What Are the Common Causes of a Non-Working Radiator Fan in a Dodge Magnum?

When dealing with a non-working radiator fan in a Dodge Magnum, it's essential to understand the common problems that could be at play. One of the first things to check is the fuse associated with the radiator fan; a blown fuse can easily disrupt the fan's operation. If the fuse is intact, the next step is to inspect the fan assembly itself, as it may be faulty and require replacement. Additionally, the fan clutch is another component that can fail, preventing the fan from engaging properly. The coolant temperature sensor is crucial for regulating the fan's activity, so a malfunction here can lead to the fan not operating as needed. Wiring issues, such as a damaged harness, can also cause the fan to stop working, even if the fuse has been replaced. Lastly, consider the cooling fan relay, which can fail and stop the fan from turning on. By systematically checking these components, you can effectively diagnose and resolve the issue, ensuring your Dodge Magnum's cooling system functions optimally and prevents engine overheating.

Why is the Radiator Fan Not Working in a Dodge Magnum?

When the radiator fan in your Dodge Magnum fails to operate, it is crucial to address the issue promptly to avoid severe engine damage or overheating. A blown fuse is often the first culprit to investigate, as it can easily be replaced and restore functionality. However, if the fuse is intact, you may need to delve deeper into potential problems with the fan assembly, fan clutch, or coolant temperature sensor, all of which can significantly impact your vehicle's cooling system. Additionally, physical obstructions like debris blocking the fan blades can hinder performance; therefore, manually checking and cleaning the fan is a wise step. Ignoring these symptoms can lead to overheating, which not only risks engine failure but can also pose safety hazards while driving. Taking the time to diagnose and resolve radiator fan issues can save you from costly repairs and ensure your Dodge Magnum runs smoothly.

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Dodge Magnum Radiator Fan Not Working: Causes & Solutions