"Visit http://www.automd.com for more auto repair videos. Our Do It Yourself and auto expert community has you covered with this Repair-apedia of easy step-by-step instructions. The spark plug provides the air gap to create a spark and ignite the air/fuel mixture inside the engine cylinder. You can check this link for the steps: http://www.automd.com/88/how-to-replace-spark-plugs/"
