I HAD AN ORIGINAL SPARK PLUG BLOW OUT OF MY FORD F-150 V-8 TRITON MOTOR WHILE I WAS DRIVING ON THE FREEWAY. IT MADE A LOUD POP NOISE AND THEN I SEEN A FLAME I PULLED OVER RIGHT AWAY AND SHUT OFF THE TRUCK AND CALLED FOR HELP. THANKFULLY I WAS NOT HURT AND THE FIRE WENT OUT AND DID NOT BURN THE TRUCK TO THE GROUND. FORD REFUSED TO FIX IT THEY SAID IT WAS NOT A LUBRICATED PART AND MY WARRANTY DIDN'T COVER THE $2000-3000.00 REPAIR. IT IS A DEFECTIVE DESIGN AND THEY KNOW IT BUT ARE NOT ALLOWED TO FIX IT UNDER THE WARRANTY'S. *TR