Spark plugs work by screwing into the engine's cylinder ... and screw them into the engine (only finger tighten the plugs, and do not use a power tool to install them). Use your torque wrench ...

RELATED: Do diesel cars last longer than petrol cars ... Despite having similar names, spark plugs and glow plugs work differently. Instead of igniting the fuel like a spark plug does, a glow ...

Here's how traditional spark plugs work: Energy generated by a coil builds across the spark plug's air gap until the energy potential ionizes gases in the gap. This causes the gases to become ...