is a combination of a electric fuel pump, a fuel gauge sending unit, a pressure regulator valve, a fuel tank pressure sensor. It is an important part of the electronic fuel injection system of automotive fuel system parts.

Fuel pump module assembly failure can be determined by an on-board inspection.

Unscrew the fuel tank cap, you can hear the sound of the fuel pump working, or you should feel the pressure when you squeeze the fuel hose with your hand;

Note when disassembling the fuel pump, please release the fuel system pressure and turn off the electrical equipment. After removing the fuel pump, measure the resistance between the two terminals of the fuel pump, it should be 2~3Ω. Use the battery to directly energize the fuel pump, and you should hear the sound of the high-speed rotation of the fuel pump motor. Note: the energization time should not be too long.

Around 100,000 miles. Fuel pumps are meant to last around 100,000 miles, but most people never have to replace their fuel pumps. They are typically built to last since they are positioned in a hard-to-access place within your fuel tank

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