What are the causes of fuel pump pressure relief?

[McKiara]

The manifestations of slight pressure relief in a fuel pump include: weak engine acceleration; difficulty starting the vehicle, requiring multiple ignition attempts; uneven engine rotation or shaking and vibration; a buzzing sound while driving; a jerking sensation during sudden acceleration; and inaccurate fuel level indicators. Below is more detailed information about fuel pumps: Function of the fuel pump: The fuel pump draws gasoline from the fuel tank and delivers it through pipelines and the fuel filter to the carburetor's float chamber. It is precisely because of the fuel pump that the fuel tank can be placed at the rear of the vehicle, away from the engine, and positioned lower than the engine. Fuel pumps can be categorized into two types based on their driving mechanisms: mechanically driven diaphragm type and electrically driven type. Identification of the fuel pump: There are two fuel pump wires: one is the power supply, and the other is the ground wire. The fuel pump operates with high current, so the wires are thick, while the sensor wires are thin, making them easy to distinguish.