Basically, a spark plug is an electrical gadget that fits into your engine's cylinder head where it “sparks” to ignite the fuel. The plug is connected to the ignition coil that generates the high voltage needed to spark the fuel and create combustion. And, it's this combustion that causes your engine to run.

There are at least 5 benefits of changing your air filter regularly; better gas mileage, reduced emissions, improved acceleration, increased engine life and overall improved driveability. For each gallon of fuel burned, the engine uses up to 10,000 gallons of air; thus why it is easy to understand how vital a clean air filter is to the proper operation of a car.

The ignition cables, also known as “spark plug wires” are part of theignition system. They transfer the spark from the distributor or ignitioncoil to spark plugs that ignite the air-fuel mixture, starting the engine.

The fuel filter keeps fuel running smoothly to the engine. It's a critical part of the system because today's fuel injectors have close-fitting parts that are easily clogged by dirt and grit. Instead of creating a fine spray offuel that burns completely, they start to produce a stream that doesn't completely ignite.