What causes a radiator fan not to work?
Six things may prevent an electric cooling fan from coming on: Defective temperature switch, coolant sensor or other sensor. Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan) Faulty fan relay.
What should I do if my radiator fan is not working?
In older cars, this typically takes about 15-20 minutes for the engine to reach the right temperature. All you have to do is lift the engine hood and listen closely for the sound of the fan. The best of modern cars have very quiet engines and so, it may not be easy to figure out the sound while you are inside the car.
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.
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.
Where is the cooling fan located on a late model car?
The radiator cooling fan is mounted directly to the radiator. All late model vehicles are equipped with a radiator cooling fan. In some vehicles, there is more than one radiator cooling fan attached to the radiator. It’s possible to have one fail while the other continues operation.
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…
Can I drive with one radiator fan not working?
As such, you should never drive your vehicle if the cooling fan isn’t working even though you can. If the radiator does not have cool air blowing on it constantly, it will overheat eventually, so you’d need the perfect combination of weather and traffic to drive effectively without a radiator fan.
What happens when radiator fan fails?
Vehicle overheating If the cooling fan motors fail, and disable the fans, the engine temperature will continue to climb until the engine overheats. Engine overheating, however, can also be caused by a wide variety of other problems, so having the vehicle properly diagnosed is highly recommended.
When should radiator fan come on?
about 200 degrees Fahrenheit
Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.How do I know if the radiator fan is bad?
These are the most common signs of a faulty radiator fan assembly in need of replacement:
- Engine Overheating. When the radiator fan isn’t functioning properly, it is not able to adequately cool down the car’s engine.
- Air Conditioner Function Diminished.
- Loud Noise Coming From Radiator Fan.
How to diagnose radiator fan problems?
Part 8 of 9: Check if the radiator cooling fan is faulty Locate the radiator cooling fan. Park your vehicle and apply the parking brake. Open the hood and locate the radiator cooling fan. Warm the engine. Start your vehicle and allow the engine to run until it begins to get hot. Check the cooling fan. When the engine starts to get above the normal operating temperature, watch the cooling fan.
Why isn’t the radiator fan working?
The biggest cause of a radiator fan not working is a broken fuse. To see if the fuse is intact and working, you’ll need to look at the fuse panel in your vehicle which will probably be under the hood. The actual location will be listed in your owner manual and will show which fuse works for which component.