A SPARK PLUG BLEW/POPPED OUT THE HEAD ON OUR 1999 FORD EXPEDITION, CAUSING FUEL VAPOR TO LEAK OUT OF THE OPENING, AND STARTING A SMALL FIRE, WHICH WAS QUICKLY DOUSED. THIS IS THE 2ND TIME IN 3 YEARS THAT THIS HAS OCCURRED, RESULTING IN OVER $2000 IN REPAIR COSTS FOR EACH OCCURRENCE. I AM VERY FRUSTRATED AS I HAVE READ THOUSANDS OF COMPLAINTS FROM OTHER EXPEDITION, NAVIGATOR, F-150, AND F-250 OWNERS WITH THIS SAME DANGEROUS SITUATION, AND NOTHING HAS BEEN DONE? PEOPLES LIVES COULD BE AT RISK WITH THIS ISSUE? RECALL NOW! *TR