What is the main function of the fuel pump in a fuel system?

The primary function of the fuel pump in a fuel system is to transport fuel from the tank to the engine. This critical role ensures that the engine receives a constant supply of fuel at the appropriate pressure, enabling it to operate efficiently. The fuel pump creates the necessary flow and pressure that allows fuel to move through the fuel lines and into the fuel injectors or carburetor, depending on the type of fuel delivery system in use.

While filtering contaminants, cooling fuel, and measuring temperature are important aspects of overall fuel system management, they are not the main purpose of the fuel pump. Filtering occurs at different points in the system, and cooling and temperature measurement are functions usually performed by other components designed specifically for those tasks.