2015 Chevrolet Impala Radiator Fan Isn't Working

Repair Radiator Fan Not Working in 2015 Chevrolet Impala

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Reviewed by
Aisha
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 2015 Chevrolet Impala 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 2015 Chevrolet Impala 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 are the steps to diagnose the non-functioning radiator fan in a 2015 Chevrolet Impala?

To effectively diagnose a non-functioning radiator fan in a 2015 Chevrolet Impala, it's essential to adopt a systematic diagnostic approach. Begin with the simplest solutions, such as 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 that controls the fan; a malfunctioning relay can disrupt the power supply to the fan. Next, test the radiator fan motor itself to ensure it operates correctly, as a defective motor will require replacement. Additionally, examine the wiring connected to the fan for any signs of damage or loose connections, as these can impede the fan's functionality. Finally, utilize a diagnostic scanner to check for any error codes related to the cooling system, which can provide further insights into the underlying problem. By following this structured approach, you can efficiently identify and address the issue with the radiator fan, ensuring your vehicle operates smoothly.

What are the common problems that could cause the radiator fan to stop working in a 2015 Chevrolet Impala?

When diagnosing why the radiator fan in a 2015 Chevrolet Impala has stopped working, it's essential to consider several common issues that could be at play. A faulty fan motor is often the primary culprit; if the motor fails, the fan will be unable to spin, leading to inadequate cooling of the radiator. Additionally, a blown fuse can interrupt the power supply to the fan, rendering it inoperative. Another potential issue is a malfunctioning relay, which is responsible for delivering power to the fan motor; if this component fails, the fan will not operate as intended. The coolant temperature sensor also plays a critical role, as it regulates when the fan should activate; a faulty sensor may fail to trigger the fan when necessary. Furthermore, wiring issues, such as damaged or corroded connections, can prevent the fan from receiving power. Lastly, physical obstructions, like debris caught in the fan blades, can hinder their movement, causing the fan to stop working effectively. By systematically checking these areas, DIYers can identify and resolve the issues affecting the radiator fan's performance.

How urgent is it to repair the non-functioning radiator fan in a 2015 Chevrolet Impala to prevent engine overheating?

Repairing a non-functioning radiator fan in a 2015 Chevrolet Impala is an urgent matter that should not be overlooked. The radiator fan is essential for regulating the engine's temperature by dissipating heat generated during operation. If the fan fails, the engine is at a heightened risk of overheating, which can lead to severe consequences such as warped cylinder heads, blown head gaskets, or even complete engine failure. Additionally, an overheating engine can compromise performance, increase emissions, and create safety hazards, particularly if the vehicle breaks down unexpectedly. Therefore, addressing any issues with the radiator fan promptly is crucial not only to avoid costly repairs but also to ensure the vehicle's reliability and safe operation on the road. Taking immediate action can prevent significant damage and maintain the overall health of your Chevrolet Impala.

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