Related: Do Diesel Engines Have Spark Plugs? The typical automotive spark plug is about the size of your index finger. There is usually one for each engine cylinder, though a few cars have two ...

Many car owners take the mighty spark plug for granted. It’s a simple yet crucial device that’s responsible for delivering the spark that ignites the fuel mixture in your engine. There’s ...

When, though, and why? First, let's define what a spark plug is, why it's important, and why it fails. Internal combustion engines need three basic elements to work — fuel, air, and spark.

Don’t worry, it’s not just you. Everyone dropped their first, or likely fortieth, F-bomb when their dad had them hold the spark plug while he hit the kickstarter on their dirt bike.

You'll also need to perform a replacement if you have a bad spark plug causing a problem like engine misfires. However, when it is time to replace your spark plugs, you can't use just any tool to ...

We’ll take a flier and trust that everyone who knows what a gasoline engine is, regardless of its performance, knows what a spark plug is. Most of those people also either know what spark plug ...

The spark plug cables of an internal combustion engine are oftentimes one of the most neglected components under the hood. In some vehicles, the engine makes do with coil packs or ignition coils ...