Shop Discount Fuel Pumps

A fuel pump is a device that assists in moving fuel from the gas tank to the engine. Modern automobiles usually utilize at least two fuel pumps – one in the fuel tank itself, and one in the engine bay – in order to make sure that fuel deliver remains adequate at all times. Fuel pumps operate can operate at anything from low to high fuel pressures. Mechanical fuel pumps were used on carbureted vehicles, and these pumps were attached directly to the vehicle’s crank shaft. A diaphragm inside the pump would draw fuel from the tank by creating a vacuum that would pull the fuel through the fuel lines. This situation was far from ideal, as low pressure in the fuel lines could lead to the vaporization of gasoline. The advent of electronic fuel injection lead to the development of electric fuel pumps, which solved the problems posed by their mechanical ancestors. Instead of a vacuum, electric pumps use a positive pressure to push fuel from directly inside the tank all the way to the engine. These types of pumps are also usually cooled by the fuel itself, which is why sometimes when a vehicle’s gas tank is low, you can hear the electric pump operating inside. The disadvantage of electric fuel pumps is that they are connected to the vehicle’s electrical system, which can continue to function even if the engine is off. This can lead to fuel pumping during an accident where the engine may no longer be functioning, increasing the risk of fire.

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