How a Fuel Pump Works

Here's what's inside the fuel pump and how it works on your car. The fuel pump, or fuel sender unit, is responsible for sending pressurized fuel to the fuel rail on the engine. It is normally situated inside the gas tank, cooled by surrounding fuel. The fuel pump assembly consists of an electric DC motor with a paddle, a pickup screen, float, tank level sensing unit, filter, pressure regulator as well as the empty level sensor. The DC motor drawings fuel through a turning paddle in through th

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