What should I do if my Wuling Light car is easy to boil at low speed

There is a situation where the pot is falsely boiled, that is, the thermostat is broken and is always in a small cycle. If it's not a fake boil, the situation is a bit more complicated. The high water temperature is due to the high temperature of the engine, which is essentially the engine not working properly or the cooling system is not working well.

Check the cooling system first, whether the fan belt is broken or too loose; whether there is a problem with the fan blades and water pump; Whether the upper and lower water pipes are deflated or delaminated; Whether the radiator is clogged or not. Then check the circuit to see if the ignition timing is correct. There is no problem with the oil circuit and carburetor.

The mechanical part is mainly the mating clearance of related components, such as valve clearance. Cam timing is right or no. In addition, it is necessary to check whether the engine oil is sufficient, and the engine heats up due to friction due to lack of oil.

Anyway, it involves a wide range of areas, and you can check where you can, but you have to enter the factory if you can't do it.

There are many reasons for the car to boil, in addition to the hot weather, the overload of the air conditioner, the failure of the heat dissipation element and the lack of water in the water tank will make the car boil. I have compiled the relevant content, welcome to enjoy and learn from it.

What is the reason for the car tank to boil.

1. Long-term water circulation will cause the slow loss of water, resulting in a lack of water in the water tank.

2. If there is dirt in the water tank, such as mud, rainwater, etc., it is easy to rust the water tank.

3. When the temperature is too high, you can use your hand 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, it can be judged that the thermostat size cycle conversion is not working properly.

4. If there is air in the cooling system, it will form air resistance, which will make the cooling water circulate poorly, resulting in high engine temperature.

5. If the vehicle is driving on a dirt road or muddy road for a long time, there will be some dirt adhering to the radiator, which will affect the heat dissipation effect over time and cause the water temperature to be too high.

Precautions for boiling the car water tank.

In summer, it is easy to open the water tank, which means that the refrigerant in the water tank has reached the boiling point, and the boiling is very harmful, and the car hurts people, so it has also attracted widespread attention.

Driving on the hot asphalt road, suddenly glanced at the water temperature gauge near the dashboard, and found that the temperature had reached 100 degrees Celsius. Maintenance experts warn that this move is too reckless. If you keep adding antifreeze, 100 degrees Celsius is still within the normal temperature range and does not reach the boiling point, the temperature of the antifreeze is between 85 degrees Celsius and 105 degrees Celsius is considered normal, and its boiling point is 120 degrees Celsius.

If you add water, it is estimated that the pot is about to boil, but whether it is antifreeze or water, you can't open the lid of the water tank at this time, because there is water vapor in the tank at this time, and the pressure is very high.

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.