You can (and should) actually read your spark plugs for valuable "clues" about how your engine is operating. To read your spark plugs, follow these steps: 1. When you get the first spark plug out of ...

Spark plugs that haven't been changed for a long time can become one with the cylinder head. Fortunately, it's possible to repair damaged threads instead of scrapping the head. (Photograph by Chris ...

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 ...

Don’t worry, it’s not just you. Everyone dropped their first, or likely fortieth, F-bomb when their dad had them hold the spark plug while he hit the kickstarter on their dirt bike. While it might ...

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 ...

Spark plug indexing gives each spark a clearer path to ignite the air-fuel mixture, which can help tuners squeeze out a few ...

Question: I have a 2006 Kia Sedona, and it randomly misfires roughly once for every week of normal driving and once after each carwash. When it happens, I pull over and shut off the car. Then, I turn ...

Q: I got a pretty good shock from one of my Toyota Camry’s spark-plug wires. I didn’t think much about it at the time other than to never touch them again when the engine is running. Later I mentioned ...

How often you replace spark plugs depends on the type of plugs you have. You may have 30,000-mile plugs, or if the plugs have platinum tips, they may be good for up to 100,000 miles, although some ...

Spark plugs, which screw into the top of an engine’s cylinders, create the electric spark required to ignite the compressed air-fuel mixture in gas-powered engines. The right type of plug and the size ...