TL* THE CONTACT OWNS A 2008 FORD F-250. WHILE DRIVING 35 MPH, WHITE SMOKE CAME OUT OF THE EXHAUST. THE CONTACT STATED THAT THE VEHICLE EXHIBITED THE SAME SYMPTOMS AS LISTED IN NHTSA CAMPAIGN NUMBER: 07V139000 (POWER TRAIN). THE VEHICLE WAS TAKEN TO COLLEY FORD (1945 AUTO CENTRE DR, GLENDORA, CA 91740, 909-592-4131) WHERE IT WAS DIAGNOSED, BUT THE FAILURE COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 70,000.