How to Use a Spark Plug Tester? Step-by-Step Instructions for Accuracy
To use a spark plug tester, attach it to the spark plug wire and hold it against the engine. Crank the engine and check for a strong, consistent spark to diagnose ignition issues. If your vehicle is idling roughly, sputtering, choking at starting, or losing power, then there, is most likely, an issue with the … Read more