The fuel pump is the core power component of the vehicle's fuel supply system. Its main function is to draw fuel from the fuel tank, pressurize it, and then steadily deliver it to the engine fuel injector (or carburetor) to provide fuel that meets the pressure requirements for the engine's combustion. This directly affects the engine's starting performance, power output stability, and fuel economy. It is like the "heart" of the fuel system, continuously circulating "energy blood" to the engine. Fuel Pump Common Faults and Typical Manifestations 1.Pump body wear / Motor burnout 2.One-way valve failure 3.Pressure regulator failure 4.Filter clogged .
