ATLANTA — A mechanical problem in millions of Ford engines is sparking frustration, hefty repair bills and four lawsuits. The problem affects spark plugs in several Ford models, including the ...

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 ...

Spark plugs sit at the center of every gasoline engine’s heartbeat, turning fuel and air into the controlled explosions that ...

Even still, as the truck approached the century mark, it would be coming up on a few things that had yet to be performed. One of these was a spark-plug change, which is recommended for the 6.2L V-8 ...