Unless your vehicle suddenly starts to hesitate or run roughly, fuel filters on modern fuel-injected vehicles only need to be checked — and replaced, if necessary — during the tune-up inspections ...

Your fuel lines are a network of tubes and hoses that bring gas or diesel from your fuel tank and fuel pump to the fuel injectors in your engine. They don’t last forever, though, and you can usually ...

Most modern vehicles have multi-port fuel injection (MFI) with a separate fuel injector for each cylinder. This system mixes the fuel and air together right in the intake port for eachengine cylinder ...