Why is my radiator fan not working in my Chevy Cobalt?

Possible Reasons for Radiator Fan Not Working in Chevy Cobalt
There can be several reasons why the radiator fan is not working in your Chevy Cobalt. Here are some possible causes to consider:
1. Coolant Level: Start by checking the coolant level in the radiator. If the coolant level is low, it can prevent the 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 inspect the fuse and replace it if necessary.
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 function properly. If everything else seems fine, the fan clutch might need to be replaced.
4. Temperature Sensor: The temperature sensor detects the engine temperature and sends a signal to the fan to turn on. If the sensor is faulty, it may not trigger the fan to start. Consider replacing the coolant temperature sensor if other components are working correctly.
5. Wiring Issues: Inspect the wiring connections and harnesses related to the radiator fan. Loose or damaged wiring can prevent the fan from receiving power. Check for any signs of damage or corrosion and repair or replace as needed.
6. Relay: The relay controls the power supply to the radiator fan. A malfunctioning relay can prevent the fan from turning on. Test the relay or consider replacing it if necessary.
It’s important to note that these are just possible causes, and a proper diagnosis by a certified mechanic is recommended to accurately identify and fix the issue with your Chevy Cobalt’s radiator fan.
I hope this helps! Let me know if you have any other questions.

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.

What stops a radiator fan from working?

It could be a problem with the fan motor, temperature sensor, fan control relay, or wiring. The Check Engine Light might come on. With modern cars, a DTC will be triggered that illuminates the light on the dash when it exceeds normal operating temperatures. It might be accompanied by a message on the cluster too.

Can a bad thermostat cause radiator fan not to work?

An unlikely, but possible, cause is a bad thermostat. Try turning the Fan switch to the “On” position to see if the blower comes on.

How do I test my radiator fan?

Function on the coolant fans there really are two ways you can do it option one is you find the coolant temperature sensor. So that’s right here in this vehicle. You can always tell because right here

What causes a radiator fan to not turn 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.

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.

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.

Does the radiator fan have a fuse?

Because it is failing and using too much amperage, radiator fans can blow a fuse. To protect the system from this excess power when the electric motor surges, the fuses break. Although you can replace the fuse, a broken fan will probably also blow another one.

What triggers the radiator fan to turn on?

engine temperature
The engine temperature should trigger the fan to turn on. It will also turn the fan off once the engine has cooled to under 200 degrees. You may have heard of a part called the radiator fan switch or temperature fan switch. This is linked to a thermostat and works much like your home’s HVAC system.