Spark plugs are typically the firestarters of an internal combustion gas engine. And when a spark plug goes wrong, it could potentially mean a host of problems like engine knocking, misfires, power ...

Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the ...

How often you change the spark plugs in your car depends on the recommendations of its manufacturer. Typically, it'll be somewhere around the 100,000-mile mark for new vehicles, but it could be much ...