If the gas tank is full and the fuel is good but your small engine won’t start, you probably have a faulty spark plug. If the fuel checks out and your engine starts but runs rough, a bad spark ...

like the type of spark plug, the vehicle's operating conditions, the type of gasoline used, and the odometer reading. Ordinary plugs need replacing every 30,000 miles, but platinum and iridium ...

Luckily, the symptoms of a bad spark plug aren't too hard to spot. What Is a Spark Plug, And What Does It Do? The spark plugs in a car engine are responsible for the spark that ignites the air and ...

One of the tell-tale signs of a bad ignition coil or bad spark plug is a fluttery or inconsistent idle. A car needs a spark to run. If it can’t get a consistently strong spark, it’s not going ...

If a car has a bad spark plug, it'll usually let you know pretty quickly. So, what are the signs of a failed spark plug? The most common is that your car is hard to start. If the plug isn't ...