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 ...

Not all spark plugs are created equal, and knowing which one your car needs can vastly improve your car's fuel economy.

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 ...

The requirement to gap spark plugs might not be as common as it once was, but it's still an important bit of maintenance on ...

Along with swapping out the air filter and changing the oil, replacing the spark plugs is one of the few things left that require service on a modern gasoline engine. Some newer than the twenty-year ...

I bought a 1996 Toyota Land Cruiser last year. A “code PO306” for “cylinder six misfire” was found by the local Toyota dealer. He swapped the plugs between cylinders five and six, and the misfire ...

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 ...

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

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 ...

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