2019 Mitsubishi Mirage Radiator Fan Isn't Working

Fixing the Non-Functioning Radiator Fan in a 2019 Mitsubishi Mirage

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Reviewed by
Andrew Hajjar
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 2019 Mitsubishi Mirage 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 2019 Mitsubishi Mirage 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.

What steps should I take to diagnose the non-functioning radiator fan in my 2019 Mitsubishi Mirage?

To effectively diagnose a non-functioning radiator fan in your 2019 Mitsubishi Mirage, begin with the simplest checks to avoid unnecessary complications. Start by inspecting the fuse associated with the radiator fan; a blown fuse is a common and easily fixable issue that can halt fan operation. If the fuse is intact, proceed to examine the relay, which controls the power supply to the fan. A malfunctioning relay can prevent the fan from receiving power, so ensure it is working correctly. Next, test the fan motor directly by applying power to it; if the motor fails to operate, it may need replacement. Additionally, check the temperature sensor, as it plays a crucial role in signaling the fan to activate when the engine reaches a certain temperature. If the sensor is faulty, it can lead to the fan not turning on. Don’t forget to inspect all wiring and connections for any signs of damage or looseness, as these can disrupt the fan's functionality. Finally, if the issue persists, use a diagnostic tool to scan for any trouble codes that may provide further insight into the problem. By following this structured approach, you can systematically identify and address the cause of your radiator fan's malfunction.

What are the common causes for a radiator fan not working in a 2019 Mitsubishi Mirage?

When troubleshooting a non-functioning radiator fan in a 2019 Mitsubishi Mirage, it's essential to consider several common problems that could be at play. A faulty fan motor is often the primary culprit, as it directly affects the fan's ability to cool the radiator. Additionally, a blown fuse can interrupt the power supply to the fan, making it inoperable until replaced. Another potential issue is a malfunctioning temperature sensor, which may fail to signal the fan to activate when the engine reaches a certain temperature. Wiring problems, such as damaged or corroded connections, can also prevent the fan from receiving the necessary power. Furthermore, low coolant levels can impact the fan's operation, as the engine may not reach the required temperature to trigger the fan. Lastly, a defective fan relay can disrupt the electrical flow to the fan, necessitating a check and possible replacement. By systematically examining these areas, you can effectively diagnose and address the issue of a non-working radiator fan in your Mitsubishi Mirage.

How urgent is it to repair the non-functioning radiator fan in a 2019 Mitsubishi Mirage?

When it comes to the urgency of repairing a non-functioning radiator fan in a 2019 Mitsubishi Mirage, the implications are significant and should not be overlooked. The radiator fan plays a vital role in regulating the engine's temperature by ensuring that the radiator remains cool. If the fan fails, the engine is at risk of overheating, which can lead to severe consequences such as warped cylinder heads or blown head gaskets. These issues not only compromise the engine's integrity but can also result in exorbitant repair costs or even necessitate a complete engine replacement. Moreover, neglecting the radiator fan can adversely affect other components of the cooling system, including the water pump and thermostat, further complicating the repair process and increasing expenses. Therefore, for DIY enthusiasts, addressing radiator fan issues promptly is crucial to maintaining the vehicle's performance and preventing long-term damage. Taking immediate action not only safeguards your engine but also ensures that your Mitsubishi Mirage operates efficiently and reliably for years to come.

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2019 Mitsubishi Mirage Radiator Fan Issues & Repairs