The Ancel Spark Plug Tester is 35% off at Amazon, but the sale ends soon. Put your car’s spark plugs to the test by ordering ...

A gas engine needs fuel, air, and spark to get its internals chugging along. Take any of these out of the equation and the engine will have a fit. While the automotive industry shifts toward fully ...

A spark plug is a small but important part of an engine. It delivers the spark that ignites the fuel-air mixture, allowing the engine to run smoothly. When a spark plug fails, the engine may misfire, ...

Spark plugs are an essential component of an internal combustion engine’s ignition system. Their function is to generate the spark that ignites the air-fuel mixture in the combustion chamber. The ...

Misfiring, rough idling, poor acceleration, and decreased fuel efficiency — the four ominous horsemen of bad spark plugs. Nobody wants to ever get to that point before desperately changing such a ...

We may receive a commission on purchases made from links. Spark plugs have come a long way, as they're more durable and reliable than ever before. In fact, unlike most air filters and fluids that do ...

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Those who felt their Dodge Challenger SRT Demon 170 lost some of the 1,025 horsepower along the way get good news. It turns out they were right: their cars were indeed losing power. Dodge has quietly ...

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 bad ...

A smooth-running engine is essential for maintaining optimal vehicle performance and efficiency. One of the simplest yet most important maintenance tasks to ensure your engine continues performing ...