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 ...

The voice on the other end of the phone was sullen. It belonged to a friend who had just emerged from under the hood of his 1999 Chevrolet pickup. As he was putting the #4 spark plug back into the ...

You would think that with all the resources that automakers have at their disposal, the products they build would be immune from peculiar failures. That this is not the case is no news to anyone in ...

If you find that a bumpy road broke off the end of one of your old spark plugs, you should probably call a tow truck. Just don't try to MacGyver your car like I did. The last time I got my car out of ...