TL* THE CONTACT OWNS A 1999 DAEWOO LEGANZA. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, GRAY COLORED SMOKE EMITTED FROM THE AIR CONDITIONER UNIT. THE CHECK ENGINE WARNING LIGHT ILLUMINATED DURING THE FAILURE. THE VEHICLE WAS TOWED TO THE MECHANIC WHERE THE MECHANIC CONFIRMED THAT THE CAM SHAFT SENSOR MELTED AND NEEDED TO BE REPLACED. THE MECHANIC ADVISED THE CONTACT THAT THE FAILURE WAS SIMILAR TO THAT LISTED IN THE RECALL UNDER NHTSA CAMPAIGN ID NUMBER:04V357000 (ENGINE AND ENGINE COOLING). THE MANUFACTURER WAS CONTACTED BUT DID NOT CONFIRM IF THE VEHICLE WAS INCLUDED IN THE RECALL. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 20,000 AND THE CURRENT MILEAGE WAS 125,575.