How Do You Replace Spark Plug Wires?
Changing spark plug wires are fairly easy and usually requires no tools. Each spark plug wire is connected to a spark plug, and brings the electrical spark to the spark plug in order to ignite the fuel inside the engine’s cylinders. A damaged spark plug wire can make your car run rough and affect gas mileage–here’s how to replace them. Open the hood and locate the spark plug wires. They can be black, blue, red or orange. Most are black. The number of spark plug wires most often corresponds to the number of cylinders your engine has. Open the box of new spark plug wires. If the new wires aren’t labeled (“1,” “2” and so on), lay them out in order of length. Start at one end of the engine and remove only the first spark plug wire: Pull on the boot (at the end) of the plug wire until it pops off. Follow the wire to its other end, where it’s plugged into the distributor cap. Remove the wire from the distributor cap by pulling on the end of the wire. Check the spark plug. A good spark plug
