One of the best ways to gain automotive knowledge is simply by asking the two-word question: “What is (a part, theory, thing)?” and locking in the definition after it is given. We’ll take a flier and ...

In racing, spark plugs are practically a disposable commodity. Use them for a while and throw them away. If the engine starts acting funny, replace the plugs just in case. It's cheap insurance and ...

If you've decided that you can get at your spark plugs without damaging your vehicle, assemble the items you need before you begin: Never change just a few plugs; it's all or nothing for even engine ...

Spark plugs are an essential part of your engine’s operation. When your engine fires, it’s the spark that causes the ignition cycle to begin. Over time, spark plugs wear out and should be replaced. If ...

Q: I have a 1992 Ford Probe 4-cylinder with 53,000 miles that runs great. The problem that has started is the spark plugs have started to become loose. When I first noticed the problem one spark plug ...

Changing spark plugs is standard maintenance on gasoline-powered cars. Can you clean and reuse old spark plugs, or should you go for brand new ones?

Like rotating tires or changing oil, replacing spark plugs is a job that can be easily, and inexpensively, done in the confines of your own home. Although they don’t need maintenance as often as the ...