A water pump is a vital component of a vehicle’s engine cooling system. Its primary function is to circulate coolant from the radiator through the engine and back, helping to regulate the engine’s temperature and prevent overheating. Driven by the engine’s belt or timing system, the water pump ensures a steady flow of coolant even at high speeds or under heavy loads. A failing water pump can lead to engine overheating, coolant leaks or even serious engine damage if not addressed in time. Common signs of a faulty water pump include a high engine temperature, steam from the radiator or a whining noise from the front of the engine. Replacing it promptly helps maintain engine performance and longevity.