CommentsFuel pumps are important for maintaining fuel efficiency since they play an essential part in delivering the right amount of fuel for the engine to burn and economy of thus be achieved. The Fuel Pump does not increase efficiency itself, however, it has a major influence on the general fuel economy. A properly functioning fuel pump supplies a consistent fuel stream to the engine, which is important for an air-fuel mixture that allows combustion to run efficiently. Engines running on fuel with an ideal air-fuel mixture are likely to use 5-10 percent less fuel than those running rich or lean because of inadequate delivery.
Cars utilizing electronic fuel injection (EFI) systems, typical in current vehicles, require consistent pressure from a fuel pump which varies between 40-60 psi(pounds per square inch) depending on the vehicle specifications. This constant pressure allows injectors to provide a proper fuel, which in turn affects not only the fuel economy but also engine performance. A failed or poorly functioning fuel pump subsequently messes up this pressure balance, often causing inability to combust properly, weakened power output and more consumption of fuel.
Installing a high-quality replacement pump in place of an aged or failing unit can help an engine regain much of its lost fuel economy if the old pump is losing pressure or plugging. So, for example, a clogged filter in the pump means less fuel is flowing through and the engine has to do more work to get at it so more fuel is being used. One such instance- replacing a worn pump or fuel filter may be able to restore as much as 15% of the lost mileage from the original components.
Fuel additives and/or injector cleaners if used intermittently may help to maintain the pump by cleaning out the fuel system, thus reducing contaminants that could construct up and potentially clog the pump or filter. A full tank of fuel also helps prevent overheating by acting as a coolant for in-tank pumps so make sure to keep the fuel level above 1/4. This helps to give a more consistent pump performance and fuel efficiency over time.
As legend in the automotive world, Henry Ford said, “Quality means doing it right when no one is looking. As long as you install a good Fuel Pump and maintain it regularly, the engine will use all its power to operate more efficiently, meaning less fuel is wasted and better overall efficiency from your fuel.