Author: Tim Miller

I’m Tim Miller, an automotive mechanic and blogger from Denver, Colorado. I’m the founder of My fan page is I’ve had over 20 years’ experience in car repair and using OBD scanners. My reviews and articles about car repair and maintenance can be found on my own website.
Posted in Maintenance & Repairs

How To Test Ignition Coils With A Multimeter

Ignition coils act as an electrical transformer that amplifies the battery voltage to generate sparks. If it is faulty, the engine may misfire, backfire, have rough idle, or experience sudden power loss. You need to test the ignition coils when…