Does the fan still turn after the car turns off? It is normal for how long the fan turns after the c

This is a normal phenomenon, if the engine coolant temperature is higher than the engine acceptable immersion temperature at the moment of stopping, the trip computer will automatically calculate the fan running speed and time, so as to automatically control the fan operation.

The higher the engine temperature, the longer the fan will run after stopping; When the engine coolant temperature is lower than the immersion temperature, the fan is turned off; This protects the engine and prolongs its service life.

Extended Materials. The automobile cooling system is divided into large cycle and small cycle, in the engine temperature is low in the cold state, the engine in order to make the temperature reach the working temperature of 90 ° as soon as possible, so it will first work in a small cycle, and wait until the temperature rises to normal when the thermostat is turned on, the large cycle begins to work, and the antifreeze begins to pass through the water tank, at this time the temperature will be reduced by 1 ° - 2 °.

Wait until the temperature rises again to 90 ° - 94 ° when the fan begins to rotate at low speed to start dissipating heat, and soon, when the temperature rises to 96 ° - 102 ° when the fan converts to high speed to heat dissipation, the appeal process only takes 15-20 minutes when idling, and the normal driving time will be shorter, so 30 to 50 kilometers of travel is enough, and in winter the engine is reduced by up to 10 ° when the vehicle is parked for 7-8 minutes.

Although the engine does not work after stopping, if the temperature of the engine is above 96°, the water temperature sensor and the fan will still work until the temperature drops to normal, and the general fan working time will not exceed ten minutes.

However, if the temperature drops and the fan keeps running for a long time, it is recommended to go to the service station to check the fan controller and related wiring.

Reference: Cooling fan Sogou Encyclopedia.

Rest assured! This is normal. In previous cars, the cooling fan was called a silicone oil fan, which was directly connected to the engine. When the engine stops, the fan stops spinning.

However, in today's cars, the fan is no longer a mechanical silicone oil fan, but an electronically controlled electric cooling fan. The control principle is that there is a water temperature sensor in the water tank, and after detecting the water temperature, the computer will decide whether to start the fan or not.

Even if the vehicle is stopped and turned off, but this circuit is still working, as long as it detects that the water temperature of the vehicle is higher than the set value, the computer will order the electric fan to continue working to cool down. It will not stop until the temperature has dropped to the set point.

So what you see is normal, don't worry.

Normal. The fan is turned on to dissipate heat. After the car is turned off, if the water tank temperature is too hot, the fan will have to turn for a while until the water tank temperature drops to a normal value.

Especially in the hot summer, when you turn on the air conditioner and go to the city, the speed of the car is slow (the water tank is not well dissipated), and the engine temperature is high, the fan will inevitably have to work, even if the engine is turned off, you have to turn one.

It's normal for the cooling fan to turn when the car is turned off, because the water temperature hasn't dropped yet! If you go to the end of the electricity is not normal! It is recommended to go to a 4S shop or repair shop to have it checked!

It is normal for the fan to turn for one minute after the car is turned off.

After the car is stopped, the temperature of the engine may be very high, especially after the engine is stopped, the water pump also stops, and the local temperature may continue to rise. In order to prevent damage to the engine caused by excessive temperatures.

As a result, the fan will continue to run for a while after the engine has stopped to cool down the engine. However, it usually doesn't take more than a minute for the engine temperature to drop and the fan to stop spinning.

V-engine:

The so-called V-shaped engine, simply put, is to divide all cylinders into two groups, and arrange the adjacent cylinders together at a certain angle (the angle of the centerline of the left and right cylinders <180°), so that the two groups of cylinders form an angle plane, and the cylinders are V-shaped from the side (the usual angle is 60 °), so it is called a V-shaped engine.

Compared to the in-line layout, the V-engine reduces the length and height of the body, and the lower mounting position allows designers to design a body with a lower drag coefficient, while the opposite arrangement of the cylinders also counteracts some of the vibrations and makes the engine run more smoothly. For example, some mid-to-high-end models that pursue a comfortable and smooth driving experience.

The above content reference: Encyclopedia - Engine.

Normal, now the weather is abnormally hot, the temperature of the water tank can not be lowered in time after the car travels a distance, at this time the computer automatically enables the cooling fan to assist in heat dissipation for a while is normal.

If the fan is still spinning after the ignition is turned off, it is normal. If the rotation time is too long, then it is time to check the fan problem. As the control of the water temperature of the engine is becoming more and more accurate in today's cars, many cars will turn the fan for a period of time after the engine is turned off to lower the temperature of the engine that has just been turned off.

There are two water temperature sensors in the engine, one before passing through the cooling fan and one behind the cooling fan. Generally, these two sensors will convert the water temperature before and after heat dissipation into electrical signals to the engine computer, and the engine will compare the two signals before and after heat dissipation to get the effect of heat dissipation. This allows you to control the speed of the cooling fan and the cooling time.

What is the size cooling cycle of the engine?

In addition to dissipating heat from the engine in the summer, the cooling system can also help the engine to maintain its heat in the winter. If the engine wants to operate normally, it must ensure that its temperature is at a constant value, if the temperature is too high, it will cause cylinder knocking; If the temperature is too low, it will lead to increased fuel consumption, poor combustion, etc. Therefore, in order to ensure the temperature of the engine, engineers divided the cooling system into large and small cycles.

Large cycle: The large cycle is generally used to dissipate heat from the engine in summer, so the heat dissipation efficiency of the large cycle will be higher. During the large cycle, the coolant will flow through the pipe to the cooling water tank at the front of the car, and then the temperature will be lowered through the fan next to the cooling water tank, and then flow into the engine to bring the heat out, and then dissipate the heat.

The large cycle is generally turned on after the engine temperature is above 80 degrees.

Small cycle: The small cycle generally insulates the engine in winter or when the outdoor temperature is not high. When performing a small cycle, the coolant only circulates inside the engine and does not pass through the external cooling tank.

A water pump pressurizes the coolant, which then causes it to flow through the internal ducts of the engine, keeping the temperature generated by the engine inside the cylinder block and thus avoiding engine hypothermia.

The car will heat up after working for a long time, and if it stops suddenly and does not work, it will burn out the motor. Therefore, after the ignition is turned out, the radiator fan must be turned to cool down to protect the electrodes. For example, the gas water heater is also turned off, and the exhaust fan is still turning.

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Happy driving. Dear, hello, after the ignition is turned off, the radiator fan is still spinning for the following reasons? The first vehicle engine temperature is too high caused by the fan running to dissipate heat to the engine, if the vehicle is turned off, the temperature sensed by the engine computer is too high, this situation will control the electronic fan to delay the shutdown, and the engine of the vehicle will be dissipated, this is generally 3 to 5 minutes later, this is the second normal phenomenon, if it is after the flameout, the radiator fan has been spinning, then this situation needs to be checked accordingly, Check if there is a problem with the vehicle's water temperature sensor or the control module of the cooling fan?

The main purpose of the fan is still rotating after the car engine is turned off is to protect the engine of the car, so what other ways can protect the engine of the car? First of all, we can preheat the engine when starting the car, so that the lubrication system of the engine is to fully lubricate the parts of each part, so that the wear and consumption of parts of the engine can be effectively avoided. At the same time, each gear has its own reasonable shift during the driving process of the car, and it is best not to always maintain a high speed at the speed, which is easy to cause a burden on the engine and increase fuel economy.

Because at the moment of stalling, the coolant temperature of the engine is higher than the maximum immersion temperature that the engine can accept, and the trip computer will automatically calculate the running speed and time of the fan by itself, so the fan will rotate again.

This is because although the car is turned off, the fan still has some inertia, so the fan is still spinning and has not stopped.

It is because the engine is particularly cold, or it may be that the temperature is particularly high, so this situation occurs. Then there is the fan running, which only makes the engine hotter and hotter.

Normal. The fan is turned on to dissipate heat. After the car is turned off, if the temperature of the water tank is too hot, the fan will have to turn for a while, and it will not stop working until the temperature of the water tank is reduced to a normal value.

Especially in the hot summer, the air is transferred to the city, the speed is slow (the water tank is not well dissipated), the engine temperature is high, the fan must work, even after the engine is turned off, it has to turn one.

The reason why the fan is still turning after the car is turned off: the reason is: cooling the engine. When the coolant temperature is too high after stopping, the trip computer will automatically calculate the speed and time of the fan, so the higher the temperature, the longer the fan will rotate, which is the protection of the engine.

The reasons why the fan is still spinning after the car is turned off are as follows:

1. The fan in the car is the function of heat dissipation, when the car is stopped, the higher the coolant temperature, the longer the fan will rotate, and it will protect the engine, which is a normal phenomenon;

2. If the fan rotates for a very long time, the engine temperature has dropped, and the fan is still spinning, it is the reason for the virtual connection of the circuit, and it is recommended to unplug the wiring harness of the fan and cut off the power separately.

3. In addition, it may be that the water temperature sensor is damaged or the fan relay contacts are sticky, so go to the repair shop to replace a new sensor or relay.

The function of the cooling fan: it is to prevent the engine from high temperatures. There are many reasons for the car to boil, in addition to the hot weather, the overload of the air conditioner and the failure of the heat dissipation element will also make the car boil. A thorough inspection of the car's cooling system is the primary way to prevent boiling.

Photo by Lai Choi Ying) @2019

Hello, this is normal, the temperature is relatively high when the engine is working, so when you park, the fan needs to continue to help your vehicle dissipate heat.

Because it's too hot in the engine compartment and needs to be cooled, the fan is still spinning.

More than ten years ago, Volkswagen's earliest turbo cars did not have an electronic fan delay function, which led to many car turbine problems, and now some people will say that the turbine life segment is the shadow left at that time, and the current turbine does not have a life problem, and the turbo car has an electronic fan delay function.

It could be because the engine temperature is too high, or the fan is running for a long time, or there may be a problem with the water temperature sensor.

This is because the coolant temperature of the engine is relatively high, and it exceeds the problem that the engine can accept, and eventually the fan will run automatically.

It's just that the temperature of the engine is still relatively high, so the dispersion is still turning to cool the engine at this time.

The reason why the fan is still running after the car is turned off: If the engine coolant temperature is higher than the acceptable immersion temperature of the engine at the moment of stopping, the trip computer will automatically calculate the speed and time of the fan, so as to automatically control the fan operation.

The higher the engine temperature, the longer the fan runs after stopping, and when the engine coolant temperature is lower than the immersion temperature, the fan shuts down, thus protecting the engine and extending the life of the engine.

Automobile radiator: The automobile radiator is composed of three parts: the water inlet chamber, the water outlet chamber and the radiator core. The coolant flows inside the radiator core and air passes through the radiator.

The hot coolant cools down as it dissipates heat to the air, and the cold air heats up by absorbing the heat emitted by the coolant.

The fan will turn to be controlled by the temperature sensor, so it will turn when the temperature is down, and when the temperature drops, the sensor will be powered off, and the fan will stop running, which is normal, unless it is too long, then you have to check whether the sensor is damaged.

Normally, the computer has a detector, if the water temperature is too high, it will continue to start the fan to cool down, and when the temperature drops to the set value, it will automatically turn off. This is a self-protection design for the vehicle.

What car are you? Some models have a forced heat dissipation function after the ignition is turned off, and the fan turns for about 1 minute.