Changing spark plugs is standard maintenance on gasoline-powered cars. While you could clean and reuse old ones, it's not ...

A spark plug is a small but important part of an engine. It delivers the spark that ignites the fuel-air mixture, allowing the engine to run smoothly. When a spark plug fails, the engine may misfire, ...

Diabetes test strips are an easy way to test your blood sugar, aka your glucose levels. This is important for people with diabetes. The strips work with glucose meters to “read” your blood sugar ...

An ignition coil is a crucial component of a vehicle’s ignition system, responsible for converting the battery’s low voltage into the high voltage needed to ignite the fuel-air mixture in the engine.

In this video, I’ll show you exactly how to test your BMW spark plugs, ignition coils, and coil wiring without needing a multimeter—just using the kit provided. Whether it’s a misfire, bad coil packs, ...

A battery in a traditional car cannot directly create engine spark. It’s only rated at 12 volts, after all, so it needs a little help boosting the signal to the spark plugs. To make that happen, a car ...

While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...