Apart from several big components, your car also consists of some smaller components, which are equally important for the smooth running of the vehicle. One such component is the spark plug of the car, which provides the required spark to the internal combustion engine to start the car. Most of the time it is a faulty spark plug, which causes starting problems in your car. A spark plug exhibits certain signs before it malfunctions. Go through the slide to know about the various signs shown by a faulty spark plug.