The auto water pumps are simple devices which force coolant via engine block along with the radiator and hoses to remove heat produced by the engine. Mostly, it is driven through the crankshaft pulley. The coolant stuck amongst the blades is thrown outside from centrifugal force which creates a vacuum in the center of the pump housing. The coolant is drawn from the radiator hose to the water pump. It then circulates in the engine where it catches heat from the combustion process and sent it back to the radiator to transfer heat outside.
The water pump is an important automotive component for the cooling system. Experts suggest the general water pump fails due to polluted fluid, unbalanced loads, and extra vibration. The polluted fluids may have abrasives that can lead to the failure of shaft seal in the water pump.