How much coolant is consumed is normal? The auxiliary kettle of the cooling system has a minimum scale and a maximum scale, that is, a minimum scale and a maximum scale. This is normal when the antifreeze is between the lowest and highest. If it is too low, it means that the antifreeze is consumed, or the cooling system leaks antifreeze. Pay special attention to this point.
If the consumption is abnormal, you can see it from the coolant pot. As long as the coolant level is lower than the minimum scale line, the coolant will be reduced, and the coolant level of high-end cars will also be displayed on the instrument.
The cycle of replacing antifreeze is two years. In two years, antifreeze is consumed to the minimum scale at most. If it is below the minimum scale, it needs to be checked well.
What is the reason for abnormal consumption of coolant? If the coolant consumption is abnormal 1, it may be that the temperature controller is damaged, and the coolant can't circulate widely, resulting in an increase in water temperature; 2. The water tank has tiny sand holes, causing water leakage; 3. There is something wrong with the water pump, which may be a problem with the connecting gasket of the water pump; 4. The cylinder gasket is cracked; 5. Adding coolant other than ethylene glycol, such as methanol, is very easy to evaporate. Of course, if the coolant consumption is too large, it will cause the engine temperature to rise, which is very harmful to the engine. Therefore, once the water temperature in the instrument panel is found to be too high, or there is no coolant in the refill kettle, or the coolant in the water tank is much less, it is necessary to go to the repair shop for inspection and maintenance.
How to check if the coolant consumption is abnormal 1? Look at the appearance first to see if there are any omissions. Generally, there will be traces where there are omissions, which are blue or red watermarks. The main inspection parts are auxiliary kettle, water pipe and connector, thermostat, water pump, water tank and engine water plug.
2. It is also possible that the warm air water tank leaks antifreeze, but it is not easy to detect. Because it is in the central control room, it needs to be removed to check or release antifreeze and then replaced with fluorescent agent for detection.
3. It may be that the cylinder gasket is washed, the antifreeze enters the combustion chamber for combustion, or enters the oil circuit to mix with the engine oil. If it enters the combustion chamber, it is proved that it enters the combustion chamber by removing the spark plug to detect that the electrode is white. If you enter the oil circuit, open the oil cover and see the milky white liquid to prove it.
Related News The automobile cooling system is a forced circulation system, which uses a water pump to increase the pressure of the coolant and force the coolant to circulate in the engine, including the water pump, radiator, fan, thermostat, supply bucket, water jacket in the engine block and cylinder head and other additional devices.
The boiling point of coolant is 107- 108℃ in general, and 120℃ in some cases. Because the automobile cooling system is controlled by thermostat, the cooling liquid generally does not "boil", so the evaporation is very small and can be considered negligible.