Symptoms of a broken car fuel pump:

1.Causing the collapse of the fuel supply system,Vehicle unable to start;2.The fuel supply pressure decreases and there is no sound of the gasoline pump running;3.Weak acceleration and abnormal noise during driving;4.The engine fault light is on, and the engine shakes abnormally;5.It is difficult to start and requires a long time to turn the key.The reason why the car fuel pump is broken:1.If the liquid level is too low, the fuel pump motor may not receive sufficient cooling and lubrication, which can cause the motor to overheat or even not work;2.Poor gasoline quality with impurities or foreign objects;3.If the gasoline filter is not replaced for a long time, the gasoline filter is blocked.