Why is my radiator fan not working in my Subaru Legacy?

Possible Reasons for Radiator Fan Not Working in Subaru Legacy
There can be several reasons why the radiator fan is not working in a Subaru Legacy. Here are some possible causes to consider:
1. Coolant Level: Start by checking the coolant level in the radiator. If the coolant level is too low, it can prevent the radiator fan from working properly.
2. Fuse: Check the fuse for the radiator fan. A blown fuse can cause the fan to stop working. Make sure to check the fuse box and replace any blown fuses.
3. Fan Clutch: The fan clutch is responsible for engaging and disengaging the radiator fan. Over time, the fan clutch can wear out and fail to engage the fan properly. If everything else seems fine, the fan clutch may need to be replaced.
4. Relays: Check the relays associated with the radiator fan. A faulty relay can prevent the fan from turning on. Inspect the relays and replace any that are not functioning correctly.
5. Temperature Sensor: The radiator fan is controlled by a coolant temperature sensor. If the sensor is faulty or not sending the correct signals, it can cause the fan to malfunction. Consider checking the temperature sensor and replacing it if necessary.
6. Wiring Issues: Inspect the wiring connections and harnesses related to the radiator fan. Loose or damaged wiring can disrupt the fan’s operation. Ensure that all connections are secure and free from damage.
It’s important to note that these are general suggestions, and the specific cause of the radiator fan issue may vary. If you are unsure or unable to diagnose the problem yourself, it is recommended to consult a qualified mechanic or Subaru dealership for further assistance.
I hope this helps! Let me know if you have any other questions.

Why is my car AC fan not spinning?

There are usually three main causes of this: damaged cooling fans, an internal obstruction, or an electrical fault. If you suspect one of these problems to be the cause, book an appointment with a mechanic as soon as possible.

Can you drive a car if the radiator fan is not working?

Can I Drive My Car If The Fan Is Not Working? Yes, your car can still run without a radiator fan, but you never should. Your vehicle’s cooling system is crucial to the engine’s performance and lifespan. Every time your engine overheats, you’re causing tremendous damage to the precious engine.

How much does it cost to fix a radiator fan?

The average cost for a Radiator Fan Motor Replacement is between $689 and $733. Labor costs are estimated between $140 and $177 while parts are priced between $549 and $556. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.

What tells the radiator fan to turn on?

On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor.

When should radiator fan turn on?

between 200 and 230 degrees Fahrenheit
In most vehicles, the radiator fan is programmed to turn on when the engine coolant reaches a temperature between 200 and 230 degrees Fahrenheit (93 to 110 degrees Celsius). However, some vehicles may have different temperature thresholds for the radiator fan to activate.

What sensor turns on the radiator fan?

Yes, the coolant temperature sensor is an important component in controlling the radiator fan in many modern vehicles. The coolant temperature sensor monitors the temperature of the engine coolant and sends this information to the engine control module (ECM), which uses it to determine when to turn on the radiator fan.

What stops a radiator fan from working?

A signal from the coolant temperature sensor is what triggers the ECU to turn on the radiator fan, and if it’s faulty, it can prevent the fan from working at all. Test the fan relay. Since the relay operates as a switch for the fan’s power, a defective cooling fan relay won’t energize the circuit.

Why are my radiator fans not kicking on?

The most common reasons for a radiator fan not working can be a blown-out fuse, a bad relay, or a broken wire. The faulty coolant temp sensor might also be a reason behind it. Whatever the case, a dysfunctional radiator fan can be fatal.

How do I know if my radiator fan fuse is blown?

You might see a temperature light pop up on your dashboard. In this case stop driving immediately. And turn off your car. The fifth symptom is a blown cooling fan fuse.

Should radiator fan turn on when AC is on?

First, run the AC and see if the radiator fan runs: it’s supposed to run with the AC by default. If it doesn’t run, you likely have a low level of refrigerant in the system or a faulty switch or a sensor, or a bad fan motor, fuse, relay, or a wiring problem.