Aowei boiled the main tank water is cold, what s going on

1. The cooling water in the engine water tank reaches the boiling point, and produces a large amount of water vapor, which will produce a large number of bubbles, and a part of the cooling system is occupied by bubbles, which will make the cylinder wall around the serious water deficit, so that the engine lacks cooling, and will reduce the strength of the piston, piston ring, connecting rod and other components, and even deform, and can not bear the normal load, and at the same time, it will also destroy the normal gap between the parts, so that the normal oil film can not be maintained between the parts, and the engine will pull the cylinder and pull the swag. In other cases, the entire engine can be damaged or even scrapped.

2. Selection of antifreeze: the freezing point of antifreeze is 10 lower than the minimum temperature in winter in the place of residence. The mainstream brand products of antifreeze are basically 40-60 yuan a barrel, with a capacity of 4 liters (the volume of the general car water tank is almost 4L).

The ** of the original concentrated antifreeze may be slightly more expensive, generally about 80 yuan a bottle, and the capacity is about that. When replacing the antifreeze, it is necessary to add it in proportion, and in general, the ratio of antifreeze to water is 1:1 or 1:

A ratio of 2 is sufficient.

3. The replacement cycle and replacement method of antifreeze.

The recommended replacement cycle of the original antifreeze will vary from manufacturer to manufacturer, but the vast majority of them recommend that car owners replace the vehicle antifreeze every 2 years, and some manufacturers show that their original antifreeze replacement cycle is 4 or 5 years. But no matter what, in short, it has to be replaced, which is nothing more than the length of the replacement cycle.

4. When replacing the antifreeze, the first and most important thing is to wait for the vehicle to cool down, and do not replace the antifreeze when the engine is at a high temperature. First, there will be a risk of burns, and secondly, the release of antifreeze during the "hot car" will also affect the cooling of the vehicle.

5. When filling with new antifreeze, you can directly pour about about (depending on the model) of antifreeze into the storage tank, and stop filling after the liquid level height reaches the upper limit max position. At this time, unscrew the drain screw next to the "water pipe", and continue to start filling the antifreeze, see the antifreeze gushing out of the drain screw continuously and without bubbles, and then tighten the drain screw, so far the first time to fill the antifreeze and release the air The work is basically completed.

After starting the vehicle, idle for 3-5 minutes to let the vehicle enter the normal working temperature, and make the new antifreeze can be fully circulated in the waterway in the car, and then turn off the engine, open the reservoir will find that the liquid level height has decreased, then only need to add an appropriate amount of antifreeze to keep the liquid level between max and min.

The engine air is not drained cleanly.

Hello, the water is not circulating, the reason for the non-circulating mess is that the pump does not pump water, the thermostat cannot be opened, the water tank is short of water, the cylinder Xunli pad is flushed with the mu to accompany the search, the same kind of inspection is needed, most of the thermostats can not be opened, I hope to help you.

Hello owner, the water tank is blocked, the thermostat is not turned on, and the water pump is broken.

The heat dissipation system is gas, and the antifreeze is not circulated.

Not very clear about this thing.

Hello, this phenomenon may be a tank gamble.

The thermostat is not opened, there is no big circulation, and the thermostat is changed.

The reasons for the van tank to boil are as follows:

The water level is insufficient, and the long water cycle will cause the water to be lost slowly, resulting in a lack of water in the tank.

The water tank is clogged, and there is poor circulation and backwater.

The water tank is leaking. A leak in the water tank will block the water circulation and seriously cause the water tank to open.

The thermostat size cycle conversion is not working properly.

The cooling fan speed is abnormal, the cooling fan may be damaged or the wire is short-circuited causing the fan to not work, or the cooling fan is slow.

If the fan water temperature sensor is broken, the cooling fan will not start properly.

First, the boiling of the water tank is harmful to the engine.

After the water tank is boiled, the engine heat dissipation is poor, the temperature is too high, and the expansion of parts will reduce the matching gap of each part, on the other hand, the viscosity of the oil is reduced if the temperature is too high, and in this case, the wear of each part is aggravated.

Second, the reason for the car boiling.

The effects of hot weather.

The air conditioner is overloaded and the cooling element is faulty.

Faults in the car's cooling system, such as leaking water tanks, lack of coolant, deterioration of coolant, and blockage of coolant circulation system.

3. Emergency treatment of water tank boiling.

When white water vapor suddenly emerges from the hood while the car is driving, or the water thermometer needle rises rapidly to the high temperature "H" mark, it means that the engine temperature is too high.

It is usually caused by insufficient water in the water tank, water leakage, or the water tank fan does not run.

Find a safe place to park immediately, but never turn off the engine immediately.

Keep the engine idling to continue dissipating heat, while opening the hood to increase the rate of dissipation.

High water temperature: 1Check the temperature of the upper and lower water pipes as well as not2

Check if the fan turns 3Check if the antifreeze is enough, 4Check if there is any water leakage5

Check the water tank lid seal 6Check if the thermostat is not stuck7Check whether the impeller of the water pump has fallen off8

The head gasket is broken.

Question: After the car stops, there is a cooing sound, and the water from the tank is returned from the tank.

1. There are many reasons for the high water temperature of the engine or even "boiling", such as damage to the electronic components of the cooling system (thermostat, cooling fan), poor heat dissipation of the radiator, insufficient coolant, etc.

2. Pull over, but don't turn off the engine immediately! Because the coolant temperature is already high and the cooling capacity has reached its limit, if the engine is turned off immediately, the boiling coolant will stop circulating (for most engines, the water pump is driven by the crankshaft).

3. Of course, if it is an electric water pump engine, it will be better), too high temperature can not be cooled, and the engine is also unbearable. If the engine is left idle for a while, the constant circulation of coolant can still reduce the impact of high temperatures on the engine.

4. Check whether the antifreeze is lacking, resulting in high engine water temperature. The circulation of the coolant, whether the circulation is not smooth. Secondly, you can also check that water temperature sensors, water pumps, thermostats, cooling fans, etc., may cause high water temperatures.

If you don't have a strong hands-on ability, you should go to the repair shop for an inspection.

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. Check whether the cooling fan is working properly, whether the water tank is leaking, whether there is a lack of coolant, if the water tank is leaking, it needs to be repaired or replaced in time, if the water tank is short of liquid, it needs to be replenished in time, and if the coolant is turbid and deteriorated, it needs to be replaced.

In addition, the moisture contained in ordinary coolant can form a water vapor barrier layer on the cylinder wall of the engine, which hinders heat dissipation, leads to engine failure, and shortens the life of the engine.

Reason: The thermostat does not open.

There is air in the waterway.

The gasket was broken.

The ignition advance angle is wrong.

The fan is broken. The pump is broken.

There is also a water leak, which leads to poor water circulation.

Car water tank. Introduction: Automobile water tank is an important part of the water-cooled engine, as an important component of the water-cooled engine heat dissipation circuit. Water is used as a heat carrier to conduct heat, and then a large area of heat sink is used to dissipate heat in a convective manner to maintain the appropriate operating temperature of the engine.

How it works:1The water tank is an important part of the water-cooled engine, as an important component of the water-cooled engine heat dissipation circuit, it can absorb the heat of the cylinder block and prevent the engine from overheating due to the large specific heat capacity of the water, and the temperature does not rise very much after absorbing the heat of the cylinder block, so the heat of the engine passes through the liquid circuit of cooling water, and the water is used as the heat carrier to conduct heat, and then dissipates heat in a convection mode through a large area of heat sink to maintain the appropriate working temperature of the engine.

2.When the water temperature of the engine is high, the water pump pumps the water repeatedly to reduce the temperature of the engine. The high-temperature water enters the water tank through air cooling and circulates to the engine cylinder wall) to achieve the purpose of protecting the engine, if the water temperature is too low in winter, the water circulation will be stopped at this time to avoid the engine temperature is too low.

Precautions for use:

1.The radiator should not come into contact with any acid, alkali or other corrosive properties.

2.It is recommended to use soft water, hard water needs to be softened before use, to avoid internal blockage of the radiator and the generation of scale.

3.When using antifreeze, in order to avoid corrosion of the radiator, be sure to use a long-lasting antifreeze produced by a regular manufacturer and in line with national standards.

4.During the installation of the radiator, please do not damage the radiator band (piece) and bump the radiator to ensure the heat dissipation capacity and sealing.

5.When the radiator is completely drained and then filled with water, the water drain switch of the engine block should be twisted on first, and then closed when there is water flowing out, so as to avoid blisters.

6.In daily use, the water level should be checked at any time, and water should be added after stopping the machine to cool down. When adding water, open the lid of the water tank slowly, and the operator's body should be as far away as possible from the water filling port to prevent high-pressure steam from spraying out of the water filling port and causing scalding.

7.In order to prevent the core from cracking caused by icing in winter, such as long-term parking or indirect parking, the water tank cover and water discharge switch should be released to release all the water.

8.The effective environment of the spare radiator should be kept ventilated and dry.

9.Depending on the actual situation, the user should completely clean the core of the radiator once in 1 to 3 months. When cleaning, rinse with clean water along the side of the reverse inlet. Regular and complete cleaning can prevent the radiator core from being blocked by dirt and affecting the heat dissipation performance and affecting the service life of the radiator.

10.The water level gauge should be cleaned every 3 months or according to the actual situation; Each part is removed and cleaned with warm water and non-corrosive detergent.

1. The water jacket of the cylinder block is lost due to sand hole or perforation.

If the temperature is too high or the temperature indicator light keeps flashing, stop to check whether the cooling water in the water tank is normal, and whether there is leakage in the water tank and water pipe. If no abnormality is found through inspection, you can continue driving after replenishing the cooling water. If the temperature is still too high after driving a certain distance, and the cooling water is reduced after stopping for inspection, this is most likely due to the loss of sand holes or perforations in the water jacket of the cylinder block.

2. The thermostat does not work.

When the engine temperature is too high, you can use your hands to touch the temperature of the upper water pipe and the lower pipe to judge, if the temperature difference between the two water pipes is large, you can judge that the thermostat is not working, if you can't buy accessories on the way, you can remove the thermostat for emergency, and replace it immediately after going home.

3. Check whether there is air entering the cooling system.

If there is air in the cooling system, it can form an air block, which will cause poor circulation of the cooling water, resulting in excessive engine temperature. The following methods can be used to deflate: let the engine run at high speed, gently unscrew the water tank cover until the gas is just released, at this time some of the cooling water will flow out with the gas, and so on many times until you feel that the gas is exhausted.

After troubleshooting, the cooling water should be replenished in time.

4. Dirt adheres to the radiator.

If the vehicle is driving on dirt roads or muddy roads for a long time, there will be some dirt adhering to the radiator, which will affect the heat dissipation effect over time, resulting in high water temperature. In this case, you can blow the radiator grid with compressed air first. Take good care of your car.

Automobile water tank boiling treatment method.

1. If the water temperature is too high, it should not be flushed with cold water.

In the process of driving, if the water temperature is too high, it must not be flushed with cold water, so that the cylinder may break; You should also not be in a hurry to open the lid of the water tank, so as not to hurt people by spraying hot water. Turn off the heat and wait for about 20 minutes before opening the lid of the water tank and adding cold water for emergency.

2. When the low-speed water tank is boiling.

That is, when the engine is in a low-speed state before boiling, you should immediately pull over, turn off the engine, and open the engine compartment cover to facilitate its heat dissipation, and then call the service station to wait for rescue.

3. If the engine is running at high speed before boiling.

The car should be pulled over immediately, and unlike the low-speed boiling, the engine should not be extinguished at this time, but the engine should be idle for a period of time. Because the engine was running at high speed before, a large amount of heat generated by the engine has not yet been dissipated, and this waste heat needs to be dissipated by residual cooling water.

First of all, change the antifreeze before the problem occurs, and rule out the "boiling" situation caused by less antifreeze or deterioration.

Second, determine whether the water pump and thermostat are working normally, method: check whether the connecting water pump belt is too loose or the engine connecting the water pump belt is "lost" when starting normally; Yes, calibrate immediately. If there is no superheated water in the inlet and outlet pipes, it is judged that the thermostat or water pump is faulty and needs to be repaired; If everything is in order, the next step.

Third, when the water temperature rises very high, the electronic fan at the front end of the engine will automatically rotate to help increase the air flow through the surface of the water tank, so that the water tank can better dissipate heat (this fan is divided into two working modes: low-speed rotation state and high-speed rotation state).

Finally, the problem of "boiling" the general tank by the above method should be solved. If it doesn't work, don't continue to drive if there is still a "boiling pot" situation, and send it to a professional car repair factory to solve it after cooling down!!