A fuel pump motor is an electric motor that is designed to pump fuel from a fuel tank to the engine of a vehicle. The motor is typically located inside the fuel tank and is powered by electricity from the vehicle's battery. The fuel pump motor is responsible for pressurizing the fuel system and supplying fuel to the engine. It has a small impeller or rotor that rotates at high speed and pumps fuel through a series of chambers and valves. There are two main types of fuel pump motors: mechanical and electric. Mechanical fuel pumps are typically found on older vehicles and use a camshaft to operate the pump. Electric fuel pumps are more common on newer vehicles and are more efficient and reliable than their mechanical counterparts. If the fuel pump motor fails, the engine may not receive enough fuel to start or run properly. Symptoms of a failing fuel pump motor include engine hesitation, stalling, and difficulty starting. It's important to have a faulty fuel pump motor replaced as soon as possible to prevent further damage to the vehicle.