TL*THE CONTACT OWNS A 2003 FORD EXPEDITION. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 55 MPH THE VEHICLE BEGAN TO SMOKE INSIDE OF THE ENGINE COMPARTMENT AND VEHICLE. THE VEHICLE ALSO MADE A LOUD NOISE AND WOULD STALL. THE VEHICLE WAS TOWED TO A FORD DEALER WHO STATED THAT A SPARK PLUG MELTED INTO THE ENGINE AND THAT THE VEHICLE NEEDED A NEW ENGINE. THE DEALER STATED THAT THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIR COST. FORD MOTOR COMPANY STATED THAT THERE WAS NOTHING THEY COULD DO. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 88,546.