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 ...

A diagnosis of any electrical system, whether it is 12 or 24 volts, must include two key elements. First, you must test the complete circuit. Second, you must understand how that circuit works. One of ...

This is how the spark plug and ignition coil work together to start the car. Since they go hand-in-hand, you should have a mechanic check on your ignition coils when they change your spark plugs ...

In this video, learn how to safely test your home’s electrical outlets using a multimeter. Multimeters are a good way of measuring the voltage output that the outlet gives, among other things ...

If an ignition coil becomes faulty, drivers may experience a lack of power during acceleration or notice excessive exhaust emissions. If any of these symptoms are observed, it is essential to have the ...

Spark plugs have a pretty predictable life cycle, but ignition coils can be harder to track. Here's how to tell if an ignition coil is on its way out.