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Why does your cooling fan still ran when the engine is switched off on your car?
Wiki User
∙ 14y ago
The cooling fan is controlled by a temperature activated switch, usually installed in the radiator. When the coolant temp rises to a preset setting the switch closes and turns on the fan.
The temperature of the coolant in the engine actually goes up immediately after shutdown as the coolant is no longer flowing but sitting still while it absorbs all the heat from the engine block and head. This heat passes through the coolant and raises the temperature of the contents of the radiator. Thus, a few seconds after the engine is shut off, the sensor reacts to the increase in temperature and turns on the fan.
This is beneficial to the engine because it prevents pressure buildup in the radiator and reduces heat buildup under the hood that could cause hot restart problems.
Wiki User
∙ 14y ago
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Why does your cooling fan come on when car is just sitting?
While your car is running the engine is heating up. While your driving you have air being forced over the radiator cooling it off. When you are sitting still you don't have that air so your engine is heating up even more so the cooling fan comes on to help cool you engine off. Via cooling the radiator.
Why does the engine cooling fan on a 2001 Impala still run when the car is off?
the radiator could still be warm or if the car is cool and it runs you need to replace the fan relay switch.
Cooling fan to run when car is off?
If the temperature of your car engine is still very high after stopping, the car cooling fan will continue to run, and the cooling fan will not work until the temperature drops.The above answer comes from Suzhou Santian Precision Mould Manufacturing Co., Ltd.
Why does the engine temperature rise when the car idles?
Engine temperature rising when the engine is idling is normal. The car is sitting still and no air is entering the engine compartment. This will cause the engine temperature to rise. The cooling fans then come on and the engine returns to a normal temperature. Unless the cooling fans do not bring the temperature down, you have no problems and this is totally normal.
What function does oil have in a car engine?
Cleaning, cooling, lubricating
Can oil get into the cooling system of a car?
Yes, engine oil and automatic transmission oil can both get into the cooling system.
What does a cooling fan do in a car?
Automobile cooling fan can cool the automobile engine when the temperature of the automobile engine rises, ensure the normal operation of the engine and protect related parts, and reduce automobile failures. If the car cooling fan is not used, after the engine is started, the temperature of the engine rises during the driving of the car, which may easily cause the car to malfunction and even cause the car to spontaneously ignite.The above answer is provided by Suzhou Santian Precision Mould Manufacturing Co., Ltd.
What is used to cut down friction in a car engine?
How- cooling oil why- overheating is bad for the engine parts
Why is your car cooling fan still run after you stop the engine or cut it off?
It's probably an electric fan that reacts and works if the engine reaches a certain temperature. Sometimes that means keeping going for a while even after you shut down the car.
What are effect of under cooling to the cooling system of the car?
Possibly over heating and worst case scenario a blown engine.
Does the cooling fins on a car engine?
On cars that have them they are air cooled since there is no radiator.
What happens if there is no engine coolant in car?
The engine could overheat and destroy itself. It's a very bad idea to drive a car with no cooling system.
