Checking, replacing and maintaining your spark plugs is actually one of the easier and most affordable car-maintenance jobs you can do in the comfort of your own driveway — that is, if you don’t screw ...

Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

Question: I have a 2005 Ford Ranger pickup with a 3.0-liter V-6 engine. It has 14,680 miles on it. When I start my vehicle after it has been parked for a while, I notice a bluish-gray smoke coming ...

Spark plug gapping may sound like one of those old-timey chores, like setting breaker points in a distributor or lubricating the frame, but having the proper spark plugs and ensuring they're properly ...

The spark plug in your car and a spark plug on a boat have the same job, but perform it in very different environments.

Q: My 1998 Chevy Cavalier won’t start. It ran fine a few days ago and then stalled out. It won’t start, although it cranks properly and all the gauges work. My neighbor has a code reader and checked ...

DEAR CAR TALK: I have a 2013 Camaro with the V-6 engine. When I changed the spark plugs, the old plugs from cylinders two to six were light tan in color, but plug No. 1 was dark and sooty. Is this a ...

Swapping out spark plugs is, next to changing your oil, one of the most basic, straightforward bits of maintenance you can perform on your car. Spark plugs go bad over time, so it's important to keep ...

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