The water pump is a vital component of a vehicle's cooling system. Its primary function is to circulate coolant through the engine and radiator, preventing overheating. The pump is typically driven by the engine’s crankshaft via a belt or chain. As the engine runs, the water pump ensures that coolant absorbs heat from the engine and releases it through the radiator. Regular maintenance is essential, as a failing water pump can lead to severe engine damage. Signs of a malfunctioning pump include coolant leaks, unusual noises, and overheating. Keeping the water pump in good condition is crucial for vehicle performance and longevity.