Attach the spark plug to a spark plug tester, then connect the tester to the ignition wire. Start the engine and observe the ...

In this video, I show you how to test spark plugs and coils on any car, even if the spark plugs are recessed or hard to reach. Whether you're troubleshooting engine misfires, poor performance, or ...

Every small gasoline engine has a spark plug, and this key component requires periodic inspection and testing. Learn how to do it here.

When your check engine light comes on, it is a warning that something is wrong with your vehicle. Here are five of the most likely causes to check for.

Learning how to test glow plugs ensures your diesel engine remains reliable and efficient. Here is how to test glow plugs.