What is the problem with the high water temperature of the water tank? How to solve it?

Poor heat dissipation of the engine and air conditioning system, resulting in high water temperature, will cause the following fault phenomena:

1. When the traffic is not smooth and the traffic jam is blocked or idling for a long time, the engine water temperature gauge is too high, the working time of the electronic fan is too long, the engine noise increases, and the fault is the most obvious when the air conditioner is turned on in high temperatures;

2. When the air conditioner is turned on in high temperatures, the idle speed is unstable and the speed fluctuates too much, the rapid acceleration is weak, and the engine has abnormal noise;

3. After the hot car is turned off for more than ten minutes, it is not good to start the car when it is started again. When a hot car is running, it sometimes turns off automatically;

4. The refrigeration temperature of the air conditioner is very cool when the car is cold, and the air conditioning refrigeration effect is not good when the car is hot. Moreover, there is a large resonance hum in the air conditioning system;

5. When the hot car is idling, the clutch of the air conditioning compressor is frequently sucked off or even disconnected, resulting in the air conditioner not being refrigerated.

Second, there are several ways to solve the fault:

1. Check whether there is too much dust between the condenser and the water tank, and clean it thoroughly with high-pressure gas to ensure that the water tank and the condenser have good heat dissipation performance;

2. When the car is hot, check that the temperature difference between the upper and lower pipes of the water tank is not too large, otherwise it is necessary to check the opening of the thermostat and whether the pump has a fault of speed loss;

3. After the car is warmed up, check the water return pipe at the upper end of the antifreeze water storage tank, if the water return is not smooth or blocked, the water temperature will be too high, and the Jetta car will have too many faults. Please pay attention to it, and do not blindly disassemble and replace parts in maintenance;

4. Due to the non-standard addition and replacement of antifreeze, the engine waterway and water tank will be blocked in advance, and the water temperature will be high. Antifreeze is changed every two years, and original parts must be used when replacing and adding. Please note:

After adding water to the engine cooling system, or adding antifreeze concentration of more than 60, it will cause the water temperature to be too high;

5. Due to the high pressure at the high end of the air conditioning system, the pressure is too high; Excessive filling of air conditioning refrigerant or air conditioning refrigeration lubricant; The self-adjusting function of the internal self-debugging air-conditioning compressor fails, resulting in high pressure; There is also the blockage of the air conditioning condenser, which will increase the load of the engine, consume the heat dissipation performance of the cooling system, and lead to the fault phenomenon of excessive water temperature; Remind friends: too little or too much refrigerant filling in the air conditioner will reduce the refrigeration effect.

The heat dissipation of the water tank is not good, and there is a lot of scale in the engine, and there is a problem in the thermostat.

The solution to the high temperature of the water tank is as follows: 1. Engine overheating caused by insufficient cooling water: do not add cold water immediately.

Start by opening up your car to a ventilated, shady place. Then open the hood and wait for the cooling water temperature to drop before adding water. 2. Overheating of the engine caused by water leakage

There are many small pipes installed on the antifreeze bottle, and there is a possibility that the hose is loose or damaged, causing water leakage. In case of emergency, you can wrap the damaged pipe with adhesive tape or plastic bag to replenish the water before driving. 3. Engine overheating caused by thermostat failure

The thermostat is generally installed on the upper part of the engine. If the temperature of the cooling water does not reach a certain temperature, water cannot be sent to the tank. Therefore, it is possible that the temperature has reached the base temperature due to the thermostat, and the water cannot be supplied to the tank, or the engine may be overheated due to too little water.

In this case, you should immediately go to the nearest repair shop. 4. If there is no coolant in an emergency, it can be replaced with water: but the coolant must be replaced immediately after arriving at the destination to solve the problem, if it is used for a long time, the cooling function of the cooling system will decrease, the fuel consumption and the vehicle power will decrease.

There are two reasons for the high water temperature of the water tank. First, there are impurities and foreign bodies in the water tank, resulting in unfavorable water circulation and high water temperature, and second, the water tank leaks, resulting in water shortage and high water temperature.

First of all, the temperature rises in summer, which directly leads to poor heat dissipation in the car water tank, and the natural water temperature will continue to rise, and the hose will be more likely to soften, and even the cooling water will leak. During driving, it is not uncommon for the water temperature to be too high to open the gear.

The water temperature of the normal engine should be kept between 85-95 degrees Celsius, at this time, the engine heat dissipation is poor, the temperature is too high, the expansion of parts will reduce the gap between the parts, on the other hand, the temperature is too high and the viscosity of the oil is reduced, in this case, the wear of the parts is aggravated. If not treated immediately, the engine is likely to burn out and cause serious damage. When you observe that the water temperature gauge is close to the red zone, or the water temperature warning light is on, you must pull over and turn off the engine for inspection, which is the safest thing to do.

If the water temperature is a little high when driving, you should pay attention to whether there is too much mud, cotton wool or gravel on the surface of the water tank, which causes the heat dissipation capacity of the water tank to decrease, and it is best to clean it up when washing the car. For older models, the high water temperature may be caused by limescale deposition in the water tank and inside the engine, so you need to go to a professional store to clean it.

Photo by Tang Yanyan of Pacific Automobile Network).

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 only running normally, and the failure of the cooling fan will cause the heat generated at the high speed of the automobile engine to be transferred to the antifreeze and not get timely heat dissipation, resulting in the temperature of the antifreeze rising.

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. Finger bends.

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.

The main reasons for the high temperature of the water tank are:

1. The water temperature is too high due to insufficient coolant. At this point, you only need to open the engine cover and look at the remaining coolant. If the coolant level is below the "min" line, there is too little coolant.

2. The radiator is too dirty, and the water temperature is high. If the engine compartment is not cleaned for a long time and there is too much dust, it will lead to poor heat dissipation of the radiator of the blind round water tank, resulting in excessive water temperature. In general, the water temperature is too high due to too much dust in the radiator of the radiator, and the problem can be solved by simply cleaning the dust on the radiator.

3. The water temperature is high due to the faulty electronic fan. The fan does not run, resulting in insufficient heat dissipation in the water tank, which causes the water temperature to be too high. There are many reasons why the fan will not rotate, it may be that the fan motor is faulty, the thermostat is not working, or the fan fuse is blown out.

The reasons why the water temperature in the car water tank is too high are as follows:

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 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 malfunction

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.Failure of the section pure sensitive thermostat

The function of the thermostat is to automatically adjust the amount of water entering the radiator according to the temperature of the cooling water, change the circulation range of the water, and adjust the heat dissipation capacity of the cooling system to ensure that the engine works within the suitable 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

If you have used water as coolant, once or twice is not a big problem, and after that, you have to clean the cooling system and replace it with coolant, if you use water for a long time, it will cause rust in the engine and water tank, and the water temperature will rise due to poor heat dissipation in the water tank.

The reasons for the high temperature of the water tank are: 1. Coolant leakage or lack of coolant; 2. When the cooling fan fails, when the vehicle is running at high speed, the heat generated cannot be transferred to the antifreeze in time and affects the heat dissipation, which then leads to the increase of the temperature of the antifreeze, resulting in problems such as boiling the pot; 3. Impeller damage is common after the impeller cracks or the impeller is loosened from the pump shaft, which leads to the slowdown of the cooling and finger fluid circulation, which is easy to cause the fault of high engine temperature. The water temperature of the car is also a reflection of the working condition of the car cooling system, the engine must run at an appropriate high temperature, generally speaking, when the engine coolant temperature is guessed at about 90 degrees, the engine reaches the best operating state, at this temperature, the temperature of the combustion chamber is enough to make the fuel completely evaporate, so it can better make the fuel burn and reduce gas emissions.

1. Antifreeze is not enough. For example, antifreeze leakage, natural wear and tear, etc., should be repaired or added in time.

2. The cooling fan does not rotate. Some cooling fans are controlled by the temperature of the coolant, and some are often rotated, the main role is to help the engine dissipate heat, if the cooling fan does not rotate in the case of high engine temperature, the fan slag must be faulty.

3. Thermostat failure. The thermostat is blocked, the large circulation cannot be opened, and the heat dissipation is not good, and the engine water temperature will rise sharply.

4. The water tank is blocked. First of all, the outside of the water tank, if there is a large amount of dust accumulation outside the water tank, the water temperature will rise if the heat dissipation is not good, and the water gun can be rinsed. In addition, there will be rust inside the tank for a long time, and if the quality of the added antifreeze is not good, it will be even more so, and the tank needs to be cleaned in time.

5. The pump is faulty. Replace the water pump.

6. The internal waterway of the engine is abnormal. For example, waterway blockage, waterway erosion and other failures, but such failures rarely occur.

Drive the car to a ventilated and shaded place. Then open the hood and wait for the cooling water temperature to drop before adding water.

Water leakage causes the engine to overheat: The antifreeze jug has a lot of tiny tubes installed on it, which may be caused by loose or damaged rubber tubing. In an emergency, you can wrap the broken pipe with tape or plastic bags to rehydrate before driving.

Engine overheating caused by a faulty thermostat: The thermostat is generally installed in the upper part of the engine. If the cooling water temperature does not reach a certain temperature, it is not possible to send water to the tank.

As a result, the engine overheats due to the thermostat, when the temperature reaches the reference temperature, the water supply cannot be supplied to the tank, or the water supply is too small. This situation should be dealt with immediately at the nearest repair shop. 4.

If there is no coolant in an emergency, water can be used instead: however, the coolant must be changed immediately upon arrival at the destination to solve the problem. If it is used for a long time, it will reduce the cooling function of the cooling system, consume engine oil, and reduce the power of the vehicle.