Regardless of the type of spark plug used by your car, chances are high that without proper engine maintenance, you could experience spark plug fouling. Fouled spark plugs cause misfires, rough idle, ...

It’s the kind of moment that makes anyone squint at their receipt like it’s written in a secret code. You pay for new spark plugs, drive away hoping for that smooth, happy idle, and the engine still ...

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 ...

There are a lot of different types of spark plugs out there, but they all do one job, which is igniting the air-fuel mixture inside the cylinders. A shiny new spark plug does that consistently at the ...

Add Yahoo as a preferred source to see more of our stories on Google. The color of a spark plug can tell you a few different things about your engine's health. In extreme cases, a blackened spark plug ...