Why is my radiator fan not working properly?

The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. If this burns out or fails, you’ll need to replace it. There are springs within the fan clutch that can wear out or corrode over the years. If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan failure.

What should I do if my sonic radiator fan is not working?

The first thing that you would want to do is locate the fuse for your Sonic’s radiator fan and make sure that it hasn’t blown. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Unless the wiring issue is fixed, the fuse will blow again. The wiring harness itself can go bad.

What to do if your cooling fan won’t turn on?

Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor.

How can I tell if my radiator fan relay is bad?

Another easy way you can check if the radiator fan switch relay is bad is to swap the radiator fan relay with the condenser fan relay. If the radiator fan begins working, this is an indication that the fan relay is bad. If the fan switch relay is giving off the appropriate readings and is in working condition, move on to the next step.

Why is my Ceiling Fan not turning on?

Ceiling Fan Speeds Are Not Working If your ceiling fan won’t turn on or your speed settings are not working properly, you may notice a sharp change in the airflow. To determine the cause of the fan speed malfunction, follow the steps below: Clean and lubricate the ball bearings.

Why are my cooling fans running at all times?

3. Cooling fans stay on at all times. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.

What are the signs of a bad cooling fan?

Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

Where is the relay on a radiator fan?

The fan relay is often located in the engine bay’s fuse box, but the best way is to check your repair manual to find where it is located. Testing a 4 pin relay is often very straightforward. Remove the relay and give 12 volts to pin 30 and 85. Ground pin 86 and check if there is voltage coming out from pin 87.

What should the current be on a radiator fan?

Start by unplugging the wires. There will be two wires of positive and negative feed. They should be putting out around 12 volts of direct current. Use a voltmeter to check that there is current present. If there is not, you need to check both the wires and the fan relay to see if replacement is required. The fan relay will be under the hood.

Why do you need a radiator fan in a car?

To stop the engine from overheating, we take the help of coolants that flow through a radiator into the engine. The radiator’s job is to keep the coolant cool so that when it returns back into the engine, it is able to absorb more heat. A radiator fan is thus used to keep the temperature of the coolant in check. Thus, it has an important job.

What does it mean when your radiator fan is not working?

This is what we call a blown fuse. A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan.

Is there a way to test a radiator fan?

You can test the electrical radiator fans by taking a wire from the car battery, unplug the radiator fan connector, and put 12v+ and ground into the connector. This is the fastest and easiest way to test your radiator fans. Because the radiator fan is often drawing so much power, there is often a relay that is powering the coolant fan.

When does the radiator fan turn on in a car?

There is a sensor on the bottom passenger side of the radiator. It does the job of taking notes of coolant temperature. It sends signals to the radiator fan to turn on when the temperature crosses 172°F.

Can a car run if the radiator 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.

Why do I need to replace my radiator fan clutch?

Fan Clutch The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. If this burns out or fails, you’ll need to replace it. There are springs within the fan clutch that can wear out or corrode over the years.

Why is your radiator fan not running?

The most common causes when a radiator fan is not coming on is broken fuse, bad wirings, bad coolant temperature sensor, bad fan relay, or a faulty radiator fan . Here is a more detailed list of the most common causes of a radiator fan not coming on.

Why does your radiator fan keep going on and off?

Here are some possibilities causing the fan to stay running longer. low coolant level, faulty coolant temperature sensor, PCM or ECU defective. coolant leaks from the water pump, cracked radiator, worn upper or lower radiator hoses, leaky heater core, leaky thermostat housing,

What causes a radiator fan to stop working?

Voltage spikes, high resistances in control circuits, defective vehicle batteries, bad wiring, short circuits, moisture, corrosion, and even excessive vibration due to damage to the fan itself can all cause a fan motor to fail.

Why does radiator fan not working?

the first thing to check is the fuse. If you don’t know where the…
check the fan wires. Start by unplugging the wires.
Temperature Sensor. The temperature sensor determines when the radiator fan comes on by reading the cooling system…
Coolant Level. Check the coolant level in your engine. The simplest way to do this is to look at the reservoir in the…

What to do if your radiator fan is overheating?

Check the coolant level in your engine. The simplest way to do this is to look at the reservoir in the engine. It will be marked with maximum and minimum levels. Always make sure the coolant level is up near the maximum level to avoid possible overheating. 5. Fan Clutch

To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. The radiator fan does a very important job; it cools the radiator to stop the car from overheating.

Start by unplugging the wires. There will be two wires of positive and negative feed. They should be putting out around 12 volts of direct current. Use a voltmeter to check that there is current present. If there is not, you need to check both the wires and the fan relay to see if replacement is required. The fan relay will be under the hood.

Check the coolant level in your engine. The simplest way to do this is to look at the reservoir in the engine. It will be marked with maximum and minimum levels. Always make sure the coolant level is up near the maximum level to avoid possible overheating. 5. Fan Clutch

To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. The radiator fan does a very important job; it cools the radiator to stop the car from overheating.