Reasons for the Fuel Pump Not Making Noise During Vehicle Power-On Self-Check

[DiColin]

1. The fuel pump not making noise during vehicle power-on self-check may first be due to electrical or electronic faults. The occurrence is often sudden without any warning. 2. Electrical faults include: blown fuse, open circuit in the high-voltage coil, open circuit in the low-voltage circuit, detached central ignition wire, leaking distributor rotor, or damaged spark plug. Electronic faults mainly refer to the failure of the central computer control board. Then there are fuel system faults. Engine stalling caused by fuel system faults often presents symptoms such as weak engine power and a spongy feel when pressing the accelerator pedal. Possible locations of fuel system faults include: malfunctioning fuel pump, blocked fuel line, clogged fuel filter, failed carburetor, damaged fuel injector, etc. Sometimes, the fuel tank may be empty without the owner realizing it. Adding a few liters of gasoline can solve all the problems.