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 ...

Spark plugs are necessary for gas-powered engines. However, they're not all the same, and they can come in different shapes ...

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Q: I have a 1995 Ford E250 V8 van with 100,000 miles on it. Last September I went to the store for 15 minutes, when I came out the van wouldn't start. I thought it was the fuel pump so I tapped on the ...

If you've ever seen a mechanic draw a tiny line on a spark plug before changing it, they're not performing witchcraft — they're indexing it. The idea is simple. Most standard types of spark plugs have ...