Just because the blower keeps blowing, the water temperature will drop. As we all know, blowing rice with your mouth, drinking water and eating will be cold. This is the same reason. Warm air is delivered to each air outlet from a closed air duct.
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When we encounter an alarm that the water temperature is too high, we should first slow down, then drive to the side of the road, and don't turn off the engine in a hurry, because the temperature of the piston, steel wall, cylinder and crankshaft will be too high, and the oil will become thinner and lose its lubrication function.
If the flame is turned off at this time, all parts are in an expanding state, and the gap between parts is very small, which will cause some soft metals to fall off after parking, and some even cause cylinder sticking. So don't turn off the fire immediately after boiling, temporarily keep idling and try to cool down.
Don't pour cold water on the engine during cooling, which may cause the engine cylinder to burst due to sudden cooling. The correct way is to put on gloves, put a folded wet cloth on the water tank cover, gently unscrew a small crack in the water tank cover, and then add cold water or antifreeze after the water vapor is slowly discharged and the water tank pressure drops.
Baidu Encyclopedia-Automobile Guo Kai