WHILE DRIVING MY 2003 FORD F250 P-UP W/ 5.4L ENGINE, I HEARD A LOUD POP AND SUDDENLY MY TRUCK WILL HARDLY GO AND IT CATCHES FIRE. I WAS INFORMED IT WAS A SPARK PLUG THAT BLEW OUT, WHICH I HAD NEVER CHANGED. FORD SAYS THEY WILL NOT FIX IT, AND OTHER PEOPLE WANT $2000 TO FIX IT. I HAVE SINCE HEARD THAT THIS IS A NORMAL PROBLEM WITH THESE ENGINE. I HAVE 5 KIDS AND NOW ONLY 1 VEHICLE, CAUSE I DO NOT HAVE THE $2000 TO FIX A PROBLEM THAT FORD CREATED. *TR