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How To Rule Out A Spark Plug As Your Problem

Multi-meter and Spark Plugs
How To Rule Out A Spark Plug As Your Problem

A straightforward but highly effective (when done properly) method is used to confirm if a spark plug is/is not the cause of engine starting and/or performance problems.

Why run to the store and buy a new spark plug as a gamble, which may not be inexpensive, when you can verify if the plug is the problem using your digital multi-meter…