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 ...

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 ...

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 ...

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 ...

Neglect can do a lot of bad things to your car's engine. Not changing the oil as frequently as recommended is a surefire way to an expensive overhaul. If you've dealt with thick, gooey sludge before, ...

Spark plugs are a key component of your gasoline engine, and they have a key role in the ignition process. How long can you expect them to last?

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