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1. What causes a fuel pump to go bad?
The main causes of fuel pump failure are contamination, overheating, and gear wear in the fuel pump over
time. Rust, debris, and dirt are three common particles that may enter the gas tank in some way and be sent
to or through the fuel filter of the fuel tank, and may enter the fuel pump.
2. How do fuel pumps work？
The basic working method of the modern electric fuel pump is to use a DC motor in the pump assembly, which
sucks the fuel in the fuel tank. From there it transfers it up to the fuel line and into the fuel rail where it can be
injected into the cylinder. Then mix with air and sparks to produce combustion.
3.What are the signs of a bad fuel pump?
Generally, a faulty or faulty fuel pump will produce one or more of the following eight symptoms to warn the
driver of potential problems.