The reasons why the car cooling fan does not turn are: the air conditioning filter is clogged, the refrigerant is missing or the heater water tank is clogged; the relay is faulty and the temperature control switch is faulty; the circuit is faulty. The cooling fan is an important part of the car engine cooling system. The heat dissipation objects are the water tank and intercooler. There is coolant with heat in the water tank. The coolant contacts the air through the radiator to dissipate heat, and the fan accelerates heat dissipation. If the fan does not rotate, the heat of the cooling system will not be dissipated, and the heat of the engine will continue to rise. The circulating fluid of the cooling system will boil in a short period of time. Once the engine overheats seriously, it will melt. The piston may lead to cylinder pull and other malfunctions. In serious cases, it may cause the engine to become tiled, the shaft to be held, and the cylinder to be damaged, until the engine is scrapped.
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