The car water pump is a critical component of the vehicle's cooling system. It circulates coolant from the radiator to the engine, preventing overheating. Typically driven by a belt, the pump ensures that the engine maintains an optimal operating temperature. A failing water pump can lead to engine overheating, causing significant damage. Symptoms of a faulty water pump include coolant leaks, noise from the pump area, and engine overheating. Regular maintenance and timely replacement are essential to ensure the longevity and efficiency of the car's cooling system.