Fuel system
The fuel system feeds your engine
Your vehicle’s fuel system typically consists of a fuel pump, located in the gas tank, a fuel filter and injectors. Located between the gas tank and the engine, the fuel filter removes dirt and contaminants before any gas gets to the engine.
The intake system and injectors deliver the fuel to the engine. Injectors spray a quantity of atomized fuel under high pressure to create combustion in the cylinders. The injector nozzle is as small as the head of a pin and may clog if dirt gets in.
Depending on your vehicle, there are two types of injection systems:
- Port injection: injects fuel into the intake ports before the combustion chamber
- Gasoline direct injection: injects fuel directly into the combustion chamber for better fuel economy