2008 Honda Fit Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functional Radiator Fan in Your 2008 Honda Fit 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 2008 Honda Fit 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 2008 Honda Fit 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 2008 Honda Fit?

To effectively diagnose the non-functioning radiator fan in your 2008 Honda Fit, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the fuse associated with the radiator fan; a blown fuse is a common and easily fixable issue. If the fuse is intact, visually examine the fan for any physical damage or loose components that could hinder its operation. Next, test the fan motor to ensure it is functioning correctly, as a faulty motor may require replacement. Following this, check the fan relay, as even a seemingly good relay can sometimes fail to operate properly. Additionally, assess the temperature sensor, which plays a crucial role in activating the fan; a malfunctioning sensor can prevent the fan from turning on when necessary. Don’t overlook the fan control module, as issues here can also disrupt fan functionality. Finally, inspect the wiring for any signs of damage or wear that could impede electrical flow. By following this structured diagnostic approach, you can identify the root cause of the radiator fan issue and take appropriate action to restore its functionality.

What are the common problems that could cause the radiator fan to stop working in a 2008 Honda Fit?

When the radiator fan in a 2008 Honda Fit ceases to operate, it can lead to overheating and other serious engine problems if not addressed. One of the most frequent culprits is a faulty fan assembly, which may require replacement if it shows signs of wear or damage. Additionally, the fan clutch can malfunction, preventing the fan from engaging properly. Another critical component to check is the coolant temperature sensor; if it fails, it may not signal the fan to turn on when needed. A blown fuse or a bad relay can also disrupt the electrical flow to the fan, causing it to stop working altogether. Lastly, inspect the wiring for any breaks or corrosion, as these can interrupt the power supply to the fan. By systematically checking these components, DIYers can effectively troubleshoot and resolve the issue, ensuring the radiator fan operates as intended and helps maintain optimal engine temperature.

How urgent is it to repair the non-functioning radiator fan in a 2008 Honda Fit to prevent engine overheating?

Repairing a non-functioning radiator fan in a 2008 Honda Fit 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. When this component fails, the engine may not receive adequate cooling, significantly increasing the risk of overheating. Overheating can lead to severe damage to vital engine parts, including the cylinder head gasket, pistons, and cylinders, which can result in costly repairs or even complete engine failure. Therefore, it is crucial to address any issues with the radiator fan immediately to ensure the cooling system operates effectively and to safeguard the vehicle's performance and longevity. Ignoring this problem not only poses safety risks but can also lead to significant financial burdens down the line.

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2008 Honda Fit Radiator Fan Issues: Causes & Repair Costs