If you’d like to fix or even diagnose anything involving electricity – whether it’s the energy that surges through a car, ...

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 ...

Is your car misfiring, idles rough, or has trouble starting? You may have weak spark caused by a worn-out ignition coil. Or you may just need to clean up a spark plug. With the proper tools, it will ...

An ignition coil takes voltage from the battery and multiplies it to create a spark at the spark plugs, which in turn ignites the engine. Cars have been using some form of the coil ignition system for ...