Automotive glossary starting with letter F

Fire Prevention System

FPS
The Fire Prevention System (FPS) is designed to interrupt fuel delivery in the event of a collision, thus minimizing the risk of fire.

Four valves per cylinder

FOUR VALVES PER CYLINDER
Four valves per cylinder are mostly used on DOHC (Double Overhead Camshaft) engines. Two of the valves are for the air-fuel mixture intake while the other two open to allow the exhaust gases out of each cylinder.

Four Wheel Drive

4WD
Four Wheel Drive is a system which transfers engine power to four wheels independently and is mostly found on SUVs and all-terain vehicles. By using differentials it can transfer almost any amount of power percentage to any of the four driving wheels.

Front-wheel Drive

FWD
Front-wheel drive (FWD) is a term use to describe a vehicle layout in which only the front wheels are powered.

Fuel cutoff

FUEL CUTOFF
A computer-controlled shutoff to the fuel system designed to prevent drivers from over-revving the engine, since over-revving is a primary cause of engine failure.

Fuel Injection

FUEL INJECTION
Fuel injection is a mechanical or electronic system designed to inject atomized fuel directly into the cylinders or the of an internal-combustion engine. Essentially, it replaces the carburetor by being much more efficient, since the injection process is much better controlled.