Ignition coils sit at the center of every gasoline engine’s spark, yet they usually stay invisible until something goes wrong. When a coil starts to fail, the symptoms can look like fuel problems, ...

Are your spark plug boots stuck or arcing? A simple tube of dielectric grease could save your ignition system. Here is the ...

An internal combustion engine needs three things to get going: Air, fuel, and spark. The throttle body and intake plenum feed air, while injectors spray the right fuel mix into the combustion chamber.

Ignition coils last far longer than spark plugs and only need replacement when symptoms appear. Here’s how to tell if coils ...