Spark plugs sit at the center of every gasoline engine’s heartbeat, turning fuel and air into the controlled explosions that ...

View post: 1970 Pontiac GTO For Sale With 61,760 Miles How often you need to replace the spark plugs depends on a variety of factors like the type of car you drive, how you drive it, and its mileage.

Misfiring, rough idling, poor acceleration, and decreased fuel efficiency — the four ominous horsemen of bad spark plugs. Nobody wants to ever get to that point before desperately changing such a ...

While many drivers will be changing their spark plugs more often than ignition coils, some might wonder if both should be ...

Spark plugs are an essential part of a car's ignition system. As the name suggests, they provide a spark of electricity that ignites the fuel and air mixture, and gets the engine up and running.