The water pump is a crucial component of a vehicle's cooling system. Its primary function is to circulate coolant throughout the engine, preventing it from overheating. The water pump is usually driven by a belt connected to the engine's crankshaft. When the engine runs, the pump draws coolant from the radiator and pushes it through the engine block and back to the radiator. This continuous flow helps maintain an optimal operating temperature. Regular maintenance of the water pump is essential, as a failure can lead to engine damage due to overheating. Signs of a failing water pump include coolant leaks and unusual noises.