2020 Kia Soul Radiator Fan Isn't Working

Troubleshooting the Causes of a Non-Functioning Radiator Fan in Your 2020 Kia Soul and How to Fix It

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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 2020 Kia Soul 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.

What are the best Kia repair shops?

RepairPal Certified shops can diagnose and repair your 2020 Kia Soul engine and performance issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
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Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
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All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
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Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Open
Closes 6:00 PM
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How much does it cost to fix a 2020 Kia Soul 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.

When the radiator fans stop functioning properly, the engine temperature will rise. The spike in temperature will be highest when the vehicle is idling at a stop, but should subside once the vehicle begins moving again.

Additionally, the air conditioner typically won't blow as cold. This is because the air from the radiator fans also blows across the air conditioning condenser, so when the fans fail, both systems suffer.

You'll also usually see the check engine light and notice a drop in fuel economy. It's possible the fan will start making noise if it's failing, as well.

What steps should I take to diagnose the non-functioning radiator fan in my 2020 Kia Soul?

To effectively diagnose a non-functioning radiator fan in your 2020 Kia Soul, begin with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. 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, as it plays a crucial role in supplying power to the fan. A malfunctioning relay can prevent the fan from activating, so testing its functionality is essential. Next, test the fan motor directly by applying power to it; if the motor fails to run, it may need replacement. Additionally, check the temperature sensor, which signals the fan to turn on at specific engine temperatures; a faulty sensor can disrupt this process. Don’t overlook the wiring connected to the fan; inspect for any damage or loose connections that could impede power flow. Finally, using an OBD-II scanner can help identify any error codes related to the cooling system, providing further insights into the problem. By following this structured diagnostic approach, you can efficiently identify the root cause of the radiator fan issue and determine the necessary repairs.

What are the common problems that could cause the radiator fan to stop working in a 2020 Kia Soul?

When diagnosing why the radiator fan in a 2020 Kia Soul has stopped working, it's essential to consider several common problems that could be at play. A faulty fan motor is often the primary culprit, as a malfunctioning motor will prevent the fan from spinning and adequately cooling the radiator. Additionally, a blown fuse can disrupt the power supply to the fan, rendering it inoperative. Another potential issue is a faulty temperature sensor, which may fail to signal the fan to activate when necessary, leading to overheating. Wiring issues, such as loose connections or frayed wires, can also impede the fan's operation, so inspecting the electrical connections is crucial. Furthermore, low coolant levels can affect the fan's performance, as the fan relies on coolant to regulate temperature effectively. Lastly, a failed fan relay can prevent the fan from turning on and off as needed. Addressing these issues promptly is vital to avoid engine overheating and damage, making regular maintenance and inspections key to ensuring the radiator fan operates smoothly.

How urgent is it to repair the non-functioning radiator fan in a 2020 Kia Soul to prevent overheating and potential engine damage?

When dealing with a non-functioning radiator fan in a 2020 Kia Soul, the urgency of repair cannot be overstated. The radiator fan is essential for regulating the engine's temperature, and its failure can lead to severe overheating, which poses significant risks to your vehicle's health. Ignoring this issue may result in costly repairs, such as warped cylinder heads or blown head gaskets, and in extreme cases, it could necessitate a complete engine replacement. Additionally, a malfunctioning fan can compromise your vehicle's performance and fuel efficiency, leading to unexpected breakdowns and increased operational costs. Therefore, it is crucial to address any signs of radiator fan failure immediately, either by conducting a DIY inspection or seeking professional assistance, to ensure the longevity and reliability of your Kia Soul. Prioritizing this repair not only safeguards your engine but also enhances your overall driving experience.

Related 2020 Kia Soul Problems

Read about related problems experienced by other Kia Soul drivers like you.

No Sound from Speakers
The navigation unit in the Kia Soul may suddenly stop playing audio from all speakers. This includes sound from CD players, radio, navigation, satellite radio, and telephone calls. All other features may still function properly. This fault requires no parts replacement, and is a software glitch that can be rectified by a 'hard reset'. To perform the hard reset, simply disconnect the vehicles negative battery terminal, wait 15 minutes, and reconnect the negative battery terminal.
7 model years affected
Avg Mileage: 195,980
67 others reported problem
20 comments
Honda Accord 2004 overheating issue due to radiator cooling fan assembly failure
Some 2004 Honda Accord owners report experiencing overheating issues due to radiator cooling fan assembly failure, which can lead to serious engine damage if not addressed promptly. Common causes of overheating include coolant leaks, radiator fan failure, and faulty thermostats. A malfunctioning cooling system, particularly a failed radiator fan, can significantly contribute to engine overheating. Insufficient coolant levels, coolant leaks, clogged radiators, and faulty cooling fans are also reported factors in overheating incidents. The radiator cooling fan is essential for maintaining proper engine temperature by dissipating heat; its failure can directly result in overheating problems. To mitigate these issues, owners are advised to check for damage to the radiator cooling fan, replace any faulty components, and regularly monitor the engine temperature gauge to prevent future overheating.
1 model year affected
Avg Mileage: 1118,500
1 other reported problem
1 comment
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