The water pump is the heart of he cooling system for any engine. It works to pump coolant through the engine in order to remove heat. It also pumps coolant into the radiator to remove heat throughout the engine. The water pump is as critical to the cooling system as the oil pump is to the lubrication system. Unfortunately the water pump operates in a slightly harsher environment, which may result in water pump issues over time and miles of operation. Water pumps now use aluminum castings as opposed to cast iron. Other than material, the water pump has not changed much in terms of construction and design. There is an impeller inside of a housing that circulates the coolant through the engine. On some applications the water pump is driven by the timing belt. On others the water pump is powered via the engine’s serpentine belt. The experts at Hollenshade’s in Towson can address any problems you may experience with your engine cooling system. Please CONTACT US for an appointment or to ask us a question about a cooling system issue or repair for your vehicle.