Why is my radiator fan not working on my Subaru crosstrek?

Possible Reasons for Radiator Fan Not Working on Subaru Crosstrek
The radiator fan in a Subaru Crosstrek may not be working due to several potential reasons. Here are some common causes based on the search results:
1. Fan Not Needed at Highway Speeds:
The radiator fan may not turn on at highway speeds because the motion of the car pushing through the air keeps the engine cool, eliminating the need for the fan. The fan is typically needed when the car is stopped and there’s no air flowing through the radiator.
2. Malfunctioning Components:
The issue could be related to a malfunctioning fan assembly, fan clutch, or coolant temperature sensor . Additionally, a faulty fuse, relay, or broken wire could also be the cause.
3. Cooling System Bleeding:
In some cases, issues with the cooling system, such as air retention, may impact the functioning of the radiator fan. Bleeding the cooling system using a funnel attached via the radiator fill has been suggested as a way to address cooling issues in Subaru vehicles.
4. AC Blower Motor Issues:
While not directly related to the radiator fan, problems with the AC blower motor, such as a blown fuse, bad relay, resistor or control module malfunction, or faulty blower motor, could also impact the overall cooling system.
5. Electric Cooling Fan Operation:
Electric cooling fans are designed to turn on when the powertrain control module receives a signal that the engine or air conditioning temperature warrants the extra flow of air. Issues with this system could also lead to the radiator fan not working.
Conclusion
If the radiator fan is not working on your Subaru Crosstrek, it’s important to consider these potential causes and perform a thorough inspection to identify and address the specific issue. If you’re unable to diagnose the problem yourself, seeking assistance from a qualified mechanic or dealership may be necessary.

Why will my radiator fan not kick 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.

Why is my radiator fan working only when the AC is on?

Most likely the temperature sensor that operates the fan under normal circumstances is faulty. The AC controls may operate the fan from a place in the control circuit after the normal temp sensor so everything is OK when the AC is on. Also the Fan may be on continuously when the AC is operating.

Are both radiator fans supposed to run when AC is on?

Usually, one fan is for the engine, the other for the AC system. The fans will come on as needed. If the engine is cool enough and the AC is on, only the one fan will be on, but they constantly cycle on and off according to need. That’s why you should always keep your hands clear, one could start at any time.

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.

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.

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.

Is the radiator fan always supposed to be running?

In normal operation, no, the radiator fan doesn’t run all the time. The fan is hooked to a sensor that measures the coolant temperature in the radiator, and when the temperature gets a little on the high side, the sensor will (basically) send a signal that turns the fan on.

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.

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.