What are the causes of high water temperature in a car engine

1. First of all, after finding that the water temperature is too high and stopping to the side, it should not be turned off immediately, because there are many reasons for the high water temperature, but there is probably only one fault each time, if all other functions are turned off, the water temperature will be too high, damaging the engine, the accurate approach should be to idle the park, open the hood, turn on the heater, dissipate heat as soon as possible, and pay attention to parking in a cool place. 2. Next, we have to check whether the coolant is sufficient, this situation is likely to be that the owner usually does not care about forgetting to add it in time, and it should be noted that the owner must choose the same brand and model of product when adding coolant, otherwise it may cause chemical reaction due to different components and lead to the failure of antifreeze. 3. Then, we are looking at whether the cooling fan is running normally, and the failure of the cooling fan will cause the heat generated in the car engine to be transferred to the antifreeze at high running speeds and not get timely heat dissipation, resulting in an increase in the temperature of the antifreeze.

If the fan is stuck or the insurance is burned, you can solve it as soon as possible after the power failure, if it is a line problem, it can only be handed over to the professionals of the 4S shop to overhaul. Extended Information:Car Radiator Function:

The function of the cooling system is to dissipate excess and useless heat from the engine, so that the engine can operate at normal temperature at all speeds or driving conditions.

The water tank is the heat exchanger of a water-cooled engine, which is cooled by air convection to maintain the normal operating temperature of the engine. Once the engine cooling water in the water tank boils and vaporizes and expands due to high temperature, and the pressure exceeds the set value, the pressure is discharged from the water tank cover (a), which causes the cooling water to decrease and prevent the cooling system line from bursting.

When driving, you should pay attention to whether the engine cooling water temperature gauge pointer on the dashboard is normal. In addition, if the engine cooling fan fails and the engine cooling water temperature rises or the cooling system pipeline leaks, the cooling water may also be reduced.

1. Insufficient coolant.

Coolant leakage or lack of coolant will cause the engine water temperature to rise, then we should check the coolant situation, if the deficiency is added to the appropriate place first, and then after a few days to check if the fluid level is seriously dropped, if so, then we need to find the leak location.

2. The cooling fan is faulty.

If the cooling fan fails, the heat generated by the vehicle cannot be transferred to the antifreeze in time when the vehicle is running at high speed, which will affect the heat dissipation, and then cause the temperature of the antifreeze to rise, resulting in problems such as boiling the pot.

3. Circulating water pump failure.

Water pump failure has several situations of bearing locking and impeller damage, bearing locking is relatively rare, impeller damage is common after impeller cracking or impeller loosening from the pump shaft, resulting in coolant circulation speed slowdown, easy to cause engine temperature too high failure.

4. Thermostat failure.

The function of the thermostat is to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, and change the circulation range of the water to adjust the heat dissipation capacity of the cooling system and ensure that the engine works within the appropriate temperature range. If the thermostat fails, then the car's cooling system may not be able to circulate largely, causing the water temperature to rise.

5. Poor heat dissipation of the water tank.

I believe that some car owners have tried to use water as coolant, once or twice is no big problem, remember to clean the cooling system and replace it with coolant, if you use water for a long time to do ** will cause rust in the engine and water tank, poor heat dissipation of the water tank leads to high water temperature.

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When the water temperature is too high, drive the car to the side of the road, turn on the double flashing lights, take out the roadblock and place it about 50 meters away from the front and rear of the car, do not turn off the engine, and run at idle speed. Open the hood, dissipate heat, and wait for the temperature to drop before driving normally. If you find that the coolant loss, leakage, oil volume is too small, do not start, timely replenish the coolant, if on the highway, you can use mineral water instead of coolant, and then to the service station is to replace the coolant, remember not to add water directly, directly use water as coolant, the coolant loss is more serious, to often replenish more troublesome.

With automobile coolant, the boiling point is around 120 degrees. And it is not easy to freeze, and it is colored, which is noticeable when leaking. It should be noted that the impurities on the water tank should be cleaned frequently, and by the way when washing the car, it is best to use professional cleaning agents.

Replenish the coolant is, don't forget to cover the water tank cover, it is a pressure valve, when the pressure is too high, it will be opened, let the coolant flow into the expansion box, when the temperature is low, the expansion tank shrinks, and the coolant will flow away, the expansion tank should retain a certain amount of liquid, generally there is a scale, and some are added to a certain extent. The thermostat is easy to age, so the problem of the lower thermostat should be ruled out first. It is best to check the water pump, if there is a problem, you have to change it, and finally check whether there is a problem with the cooling fan, if the temperature is very high but the fan does not turn, only turn on the air conditioner, it means that the temperature sensor is out of order.

Immediately reduce the engine powerReducing the engine power is to reduce the heat production of the engine and avoid the rapid increase in water temperature. The easiest operation is to release the throttle immediately, and you can choose to hang it according to the current speed.

There are two important points to find a safe place to park here, one is to find a safe place to park, and the other is to turn off the engine as soon as possible. It's important to find a safe place to park, not only to keep us safe, but also to keep us safe.

Immediately after parking, the engine is turned off immediately after parking, and the engine is turned off immediately after parking, and it does not wait for a second. After turning off the engine, tighten the handbrake, turn on the double flash, and then take out the tripod and place it in the back of the car.