What causes high water temperature in a car engine?

Reasons for the high water temperature of the car engine:

1. Insufficient coolant; Coolant leakage or lack of coolant will cause the temperature of the car engine to rise, then we need to check the coolant condition, if the coolant is insufficient, first add to the appropriate part, and then check whether the level gauge drops after a few days, if so, to find the leak part.

2. Common faults of cooling fans; If the cooling fan is commonly faulty, when the car rotates at high speed, the heat generated cannot be immediately transmitted to the car anti-liquid and directly affects the heat dissipation, which then causes the temperature of the anti-liquid of the car to rise, causing problems such as boiling.

3. Common faults of circulating pumps; The common faults of the water pump are the locking of the rolling bearing wheel and the destruction of the centrifugal impeller, the situation of the locking of the rolling bearing wheel is very rare, and the centrifugal impeller is generally destroyed after the centrifugal impeller is cracked or the centrifugal impeller is loosened from the pump shaft, resulting in the slowdown of the refrigerant circulation system, which is very easy to cause the common fault of the automobile engine temperature is too high.

4. Common faults of water temperature sensors; The function of the water temperature sensor is to automatically adjust the water flow flow into the heat pipe radiator according to the temperature of the cooling circulating water, and change the water circulation range to control the heat rejection capacity of the refrigeration system and ensure that the automobile engine works within the appropriate temperature range. If the water temperature sensor is commonly faulty, then the car's cooling system may not be able to carry out the large circulation system, causing the temperature to rise.

5. The heat discharge of the water tank is not good; Some car buyers have tried to use tap water as coolant, once or twice there is no problem, remember to clean the refrigeration system and replace it with coolant, if the long-term tap water will cause rust in the car engine and water storage tank, and the temperature is high due to poor heat discharge in the water storage tank.

There are many reasons for the high water temperature of automobiles: 1. The failure of the thermostat causes the engine cooling system to be unable to open or incomplete, which affects the heat dissipation. 2. The water temperature is high due to the fact that the electronic fan does not work or the motor is aging. 3. The radiator of the water tank and the water channel are blocked, etc.

Lack of water in the coolant, blockage of the cooling radiator, slack of fan belt, and failure of the thermostat may be due to the high water temperature of the engine.

The first is caused by the lack of antifreeze, the second is caused by the cooling fan, the third is caused by poor antifreeze circulation, and the fourth is caused by the engine itself.

Solution to high engine water temperature:

1. When we encounter an alarm of high water temperature, we should first slow down, and then drive the car to the side of the road, do not rush to turn off the engine, because the water temperature is too high, which will cause the temperature of the piston, steel wall, cylinder, crankshaft, etc. to be too high, and the oil will become thinner and lose its lubrication. If the ignition is turned off at this time, the parts are in a state of expansion, and the gap between the accessories is very small, which causes some soft metals to fall off after the shutdown, and some even cause the cylinder to stick; Therefore, after finding that the pot is boiling, do not turn off the heat immediately, but temporarily keep idling and try to cool down;

2. Do not pour cold water on the engine when cooling down, which may cause the engine block to burst due to quenching. The correct way is: put on gloves, add a multi-folded wet cloth to the water tank cover, gently unscrew the water tank cover into a small crack, wait for the water vapor to be slowly discharged, and after the water tank pressure drops, add cold water or antifreeze;

3. Due to the water seepage of the water pipe and the lack of cooling water, in this case, distilled water or pure water can be supplemented for emergency, and then repaired when it is convenient. Just be careful not to open the lid of the water tank when heating the car to avoid being burned by the water vapor sprayed by the strong pressure inside. If the amount of water is sufficient, the fan behind the tank should be checked, and the fan should be running even after the ignition is turned off when the water temperature is high;

4. If the fan does not move, turn the fan blades first to see if the fan motor is stuck, and you can easily dial it under normal conditions. If there is no problem with the motor, check the fan fuse, which is one of the many reasons, especially in the summer.

5. The failure of the thermostat is also the cause of high water temperature, once the failure will cut off the cooling water circulation, when the two thick glue pipes above and below the water tank are touched by hand There is an obvious temperature difference, that is, the thermostat is damaged and faulty, and it needs to be removed and replaced, which is generally handled by professionals.

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