1995 Toyota Supra Radiator Fan Isn't Working

Diagnosing the Causes of a Non-Functioning Radiator Fan in Your 1995 Toyota Supra and How to Fix It

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Reviewed by
Bo Fader
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 1995 Toyota Supra 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 cause the engine cooling fan to operate improperly, leading to overheating or inadequate engine cooling.
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 1995 Toyota Supra 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 1995 Toyota Supra?

When diagnosing a non-working radiator fan in your 1995 Toyota Supra, it's essential to adopt a systematic diagnostic approach that prioritizes simpler fixes before delving into more complex issues. Begin by checking the fuse associated with the radiator fan; a blown fuse is often a straightforward fix that can resolve the problem. If the fuse is intact, inspect the fan itself for any visible damage or wear that could hinder its operation. Next, test the relay to ensure it is functioning correctly, as a faulty relay can prevent power from reaching the fan. Additionally, verify the temperature sensor's performance, as it is responsible for activating the fan when the engine reaches a certain temperature. Don't overlook the wiring; check for any broken or disconnected wires that could disrupt the electrical flow. If all these components appear to be in good condition, you may need to examine the fan assembly for internal issues. By following this methodical approach, you can effectively identify the cause of the malfunction and ensure your cooling system operates efficiently, ultimately protecting your engine from potential damage.

What causes the radiator fan to fail in a 1995 Toyota Supra?

Understanding the common problems that can lead to radiator fan failure in a 1995 Toyota Supra is essential for any DIY enthusiast looking to maintain their vehicle. One of the primary culprits is issues with the fan assembly itself, which can prevent the fan from operating effectively. Additionally, the fan clutch, responsible for connecting the fan to the engine, may wear out over time, resulting in inadequate cooling. Another significant factor is the coolant temperature sensor; if this component malfunctions, it can disrupt the fan's operation, leading to overheating. Furthermore, improper fitment during installation, such as misalignment of the radiator or fan shroud, can cause binding and leaks, further compromising the fan's performance. By being aware of these potential issues, you can take proactive steps to troubleshoot and resolve radiator fan problems, ensuring your Supra runs smoothly and efficiently.

How urgent is it to fix the radiator fan in a 1995 Toyota Supra to prevent overheating?

When it comes to the radiator fan in your 1995 Toyota Supra, urgency is key. A malfunctioning radiator fan can lead to inadequate cooling, which may cause your engine to overheat, especially during idling or slow-moving conditions. If you notice your engine temperature rising beyond normal levels, it’s crucial to act quickly. Ignoring these symptoms can result in severe engine damage, costly repairs, and even safety hazards while driving. The radiator fan is essential for maintaining optimal engine temperature, and any delay in repairs can exacerbate the problem, leading to more significant issues down the line. Therefore, if you suspect a problem with your radiator fan, addressing it immediately is vital to ensure the longevity and reliability of your vehicle.

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