A fuel system is a crucial component in vehicles and machinery that stores and delivers fuel to the engine. It typically includes parts like the fuel tank, fuel pump, fuel filter, and fuel injectors. The system ensures that the right amount of fuel reaches the engine for efficient combustion, which powers the vehicle. In addition to vehicles, fuel systems are also found in various types of equipment, such as generators and boats. Proper maintenance of the fuel system is essential for optimal performance and to prevent issues like clogs or leaks, which can lead to engine problems.