The water pump is a crucial component of a vehicle's cooling system. Its primary function is to circulate coolant through the engine and radiator, ensuring that the engine operates at an optimal temperature. When the engine runs, the water pump draws coolant from the radiator, pushing it through the engine to absorb heat. After the coolant has circulated, it returns to the radiator to release the heat. A malfunctioning water pump can lead to overheating, which may cause severe engine damage. Regular maintenance, including checking for leaks and ensuring proper function, is essential for the longevity and performance of a vehicle.