what makes water to boil and leak from the radiator
1 Answer
It is called coolant that flows threw the engine to keep the engine from overheating. The engine temperature is controlled by a thermostat that could be stuck closed not allowing the coolant to flow the cooling system. Other causes would be low on coolant, a bad water pump, a plugged radiator, or a bad head or head gasket, which usually happens once a engine overheats.
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