2010 Chevrolet Impala Radiator Fan Isn't Working

Fixing the Non-Functioning Radiator Fan in a 2010 Chevrolet Impala

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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 2010 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 2010 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 steps should I take to diagnose the non-functioning radiator fan in my 2010 Chevrolet Impala?

To effectively diagnose the non-functioning radiator fan in your 2010 Chevrolet Impala, it’s essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex issues. Start by examining the fuse linked to the radiator fan, as a blown fuse is a common culprit that can easily be replaced. If the fuse is intact, the next step is to inspect the relay, which is responsible for supplying power to the fan; a faulty relay may need to be replaced to restore functionality. Following this, you can test the fan motor directly by applying power to it; if the motor does not operate, it likely requires replacement. Additionally, check the temperature sensor, as a malfunctioning sensor can prevent the fan from activating at the correct engine temperature. Finally, inspect the wiring for any damage or loose connections, as these can impede power delivery to the fan. If these diagnostic steps do not resolve the issue, it may be time to consult a professional mechanic for further assistance. By following this methodical approach, you can effectively identify and address the problem with your radiator fan.

What are the common causes for the radiator fan not working in a 2010 Chevrolet Impala?

When troubleshooting a non-working radiator fan in a 2010 Chevrolet Impala, it's essential to consider several common problems that could be at fault. One of the primary culprits is a faulty fan assembly, which may require replacement if it fails to operate. Additionally, the cooling fan relay is another critical component that can malfunction, preventing the fan from receiving the necessary power to function. Wiring issues, particularly those affecting the secondary cooling fan, can also disrupt the electrical flow, leading to fan failure. It's important to check for blown fuses, as these can easily be overlooked but are vital for the fan's operation. Furthermore, a worn-out fan clutch can hinder performance, and low engine coolant levels can cause the engine to overheat, triggering the fan to operate improperly. By systematically examining these areas, DIYers can effectively diagnose and address the issues affecting the radiator fan in their Impala.

How urgent is it to repair the non-functioning radiator fan in a 2010 Chevrolet Impala to prevent engine overheating?

Addressing a non-functioning radiator fan in a 2010 Chevrolet Impala is of utmost importance due to the immediate risks associated with engine overheating. The radiator fan is essential for regulating the engine's temperature by dissipating heat generated during operation. When this component fails, the engine may not receive the necessary cooling, leading to a significant risk of overheating. This condition can cause severe damage to vital engine parts, including the cylinder head gasket and pistons, potentially resulting in costly repairs or even complete engine failure. Moreover, neglecting to repair the radiator fan can leave you stranded due to an unexpected breakdown, making it crucial to prioritize this repair. By addressing the issue promptly, you not only safeguard your vehicle's performance but also enhance its longevity, ensuring a safer and more reliable driving experience.

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2010 Chevrolet Impala Radiator Fan Troubleshooting Guide