How to tell if the thermostat is broken, and what are the symptoms of a broken thermostat?

As we all know, the automobile thermostat is an automatic temperature adjustment device, which adjusts the amount of water entering the radiator according to the temperature of the cooling liquid, so as to ensure that the heat dissipation capacity of the cooling system is adjusted. But what everyone does not know is that the thermostat is actually a vulnerable item. If it fails, it will have a serious impact on the size and circulation of the coolant. So how do you judge that the thermostat is broken, and what are the symptoms of the thermostat? Let's answer it for everyone.

If the warm-up time of the engine is much slower than before, and you feel that the power of the car has dropped significantly, you need to check whether the fan is running normally. If there is no problem with the fan, and the temperature of the coolant in the water tank is not high when the engine temperature is too high, it will not feel hot to touch the radiator with your hands. At this time, it can basically be judged that the thermostat is damaged (the main and auxiliary valves are abnormal) and need to be replaced in time. As for why this happens, this is still in the two cases of scoring, no matter which symptom it is, the impact on the car itself is very large.

The thermostat is brokenofsymptom:

The main valve of the thermostat has been closed for a long time

If the main valve of the thermostat is closed for a long time, it will naturally lose the function of the thermostat to automatically adjust the water volume (it is always in a small cycle state). Then when the engine is running at high speed, due to the lack of timely cooling, it will not only accelerate the wear of the internal parts of the engine, but even "boil the pot" phenomenon, and the maintenance cost will be quite high at that time.

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