The water pump is a vital component of a car's cooling system. It is responsible for circulating coolant throughout the engine and radiator, ensuring that the engine maintains an optimal temperature. When the engine is running, the water pump draws coolant from the radiator and pushes it into the engine block, where it absorbs heat. The heated coolant then returns to the radiator to be cooled down. 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 of both the water pump and the engine.