Why does my engine fan come on when I start my car?
Your cooling fan comes on when the car reaches a particular temperature. The trigger is the thermostat in the radiator of your vehicle. It is what sends the signal for the fan. Most cars will switch the cooling fan when the coolant temperature reaches 85 degrees Celsius (185 degrees Fahrenheit).
Is it normal for a car fan to run after I turn my?
It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Your car fan will run for a few minutes after you turn off the car then turn it off. This is normal in many vehicles, such as BMW or Mercedes-Benz. The radiator fan may run up to five minutes and sometimes longer.
How do I check the cooling fan in my car?
How to Check a Radiator Fan
- Determine whether your radiator fan is manual or electric.
- To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on.
- Use the volt meter to test if there is power to the wires.
- Normal voltage for a radiator fan is around 12 volts.
When does the cooling fan start on a car?
My cooling fan starts immediately when I start the car even though it is cold and stays on until the engine is shut off. My cooling fan starts immediately when I start the car..stays… Starts and dies after a few seconds to a minute. And yes.
How long does it take for the radiator fan to turn on?
Turn the air conditioning to the maximum setting – this should spark the cooling fan to immediately come on. This typically takes about 15-20 minutes for the engine to reach the right temperature for the radiator fan to turn on in older cars.
Why is my engine cooling fan not working?
Your engine cooling fan, only runs when needed to help cool the engine. So, a engine cooling fan, relay or control circuit failure is bad news. Because, it can allow the engine to overheat. The engine coolant sensor or a separate engine temperature switch, is used to monitor engine temperature.
How does the radiator fan work in a car?
This type of radiator fan is almost always found in modern vehicles and sedans. The electrical radiator fan is controlled by an electric motor, with the radiator fan turns on when the car starts. The engine’s computer is in charge of when the fan turns on and off, dictating the radiator fan’s usage based on the temperature of the vehicle.