MY EXPEDITION CAUGHT ON FIRE PARKED IN MY DRIVEWAY AT LEAST 30 MINUTES AFTER DRIVING IT. I WAS ABLE TO PUT THE FIRE OUT WITH A FIRE EXTINGUISHER AND A WATER HOSE, BUT THE PLASTIC PARTS WERE WERE MELTED ON THE DRIVER SIDE. THE BATTERY WAS DISCONNECTED AND I WAS TOLD BY A MECHANIC THAT IT WAS THE CRUISE CONTROL RELAY.