2013 GMC Yukon XL 2500 Radiator Fan Isn't Working

Fixing the Non-Functional Radiator Fan in a 2013 GMC Yukon XL 2500

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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 2013 GMC Yukon XL 2500 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 2013 GMC Yukon XL 2500 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 first indication of a defective fan clutch is a healthy cooling system that runs below or above the normal temperature range. This is due to the fan running too fast or too slow. Also, a seized cooling fan will cause a loud roaring fan noise from under the hood every time the accelerator is pressed, and the engine will feel as if it lacks power. In this situation it would be very difficult to turn the engine cooling fan by hand, of course when the vehicle is off. Finally, if the clutch fails the fan will either turn very slowly, and not respond well to engine speed.

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-working radiator fan in my 2013 GMC Yukon XL 2500?

To effectively diagnose the non-working radiator fan in your 2013 GMC Yukon XL 2500, it’s essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the fuse related to the radiator fan, as a blown fuse is a common issue that can easily be resolved. If the fuse is intact, the next step is to examine the relay, which controls the power to the fan; a faulty relay can prevent the fan from receiving the necessary power. Following this, you should test the fan motor directly by applying power to it; if the motor does not operate, it may need to be replaced. Additionally, check the temperature sensor, which is responsible for signaling the fan to turn on when the engine reaches a specific temperature; a malfunctioning sensor can hinder fan activation. It’s also crucial to inspect all wiring and connections for any signs of damage or looseness, as faulty wiring can disrupt the fan's operation. Lastly, using a diagnostic tool to scan for any trouble codes can provide insights into specific issues affecting the cooling system. 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 2013 GMC Yukon XL 2500?

When diagnosing why the radiator fan in a 2013 GMC Yukon XL 2500 is not functioning, it's essential to consider several common problems that could be at play. One of the first things to check is the fan motor itself, as a faulty motor is a frequent culprit that may require replacement. Additionally, inspect the fuse associated with the fan circuit; a blown fuse can easily disrupt power to the fan, making it inoperable. Another critical component to evaluate is the temperature sensor, which plays a vital role in signaling the fan to activate when the engine reaches a certain temperature. If this sensor is malfunctioning, it may not trigger the fan as needed. Furthermore, examine the wiring for any signs of damage or loose connections, as these can impede the electrical flow necessary for the fan to operate. It's also wise to check the coolant level; low coolant can lead to overheating and may prevent the fan from functioning correctly. Lastly, consider the fan relay, as a failure here can stop the fan from receiving power altogether. By systematically addressing these potential issues, you can effectively troubleshoot and resolve the problem with the radiator fan in your GMC Yukon XL 2500.

How urgent is it to repair the non-functioning radiator fan in a 2013 GMC Yukon XL 2500?

When it comes to the radiator fan in your 2013 GMC Yukon XL 2500, addressing a malfunction promptly is not just a matter of convenience; it’s essential for the health of your engine. A non-functioning radiator fan can lead to inadequate cooling, which significantly increases the risk of engine overheating. This overheating can cause severe damage, including warping of the cylinder head or even complete engine failure, resulting in costly repairs and potential safety hazards while driving. Therefore, if you notice any signs of a malfunctioning radiator fan, such as unusual noises or the engine temperature gauge rising, it is crucial to take immediate action. By prioritizing this repair, you not only protect your vehicle’s performance but also ensure your safety on the road. Ignoring these symptoms can lead to dire consequences, making it imperative to address the issue without delay.

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