In this video, learn to test spark plugs and ignition coils for a BMW using a specialized test kit. Discover how to identify ...

Engine cylinders can misfire due to problems with the ignition system, the fuel system, air and compression, or sensors and ...

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

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. While it might ...

From the May 1981 issue of Car and Driver. A half-hour into the journey from San Francisco to Los Angeles, the all-too-fa­miliar red lights are flashing in my rear­view mirrors. Damn. I'm doing ...

The drive behind this demo? Bosch kicked off its hydrogen-combustion program back in 2016, aiming to keep the heart of the internal combustion engine beating while slashing carbon. Under Jacques ...

Learn how to use dielectric grease on spark plug boots to prevent voltage leaks and corrosion. Follow our guide to protect ...