Spark plugs that haven't been changed for a long time can become one with the cylinder head. Fortunately, it's possible to repair damaged threads instead of scrapping the head. (Photograph by Chris ...

Changing your spark plugs can either be a quick and simple task, or a painful chore. Roadblocks may pop up during the removal or installation of the plugs, but follow these three tips to breeze ...

Q I recently took my '02 Chrysler minivan in for 100,000-mile service and was told that one of the spark plugs would not come out of the cylinder head. The shop tried, but it would only come out so ...