They may look like your average wires, but spark plug wires have a very important job to do. Their mission is to provide electricity from the car's 12 volt battery to the engine's spark plugs. Without ...

An ignition coil takes voltage from the battery and multiplies it to create a spark at the spark plugs, which in turn ignites the engine. Cars have been using some form of the coil ignition system for ...

Even still, as the truck approached the century mark, it would be coming up on a few things that had yet to be performed. One of these was a spark-plug change, which is recommended for the 6.2L V-8 ...