TL* THE CONTACT OWNS A 2011 HYUNDAI SONATA. THE CONTACT STATED THAT THE ENGINE WAS HESITANT AND THERE WAS EXCESSIVE SMOKE EMITTING FROM THE TAIL PIPE. THE DEALER (CIOCCA HYUNDAI, 550 S WEST END BLVD, QUAKERTOWN, PA 18951, (215) 536-2700) INDICATED THAT THE VEHICLE WAS PREVIOUSLY REPAIRED PER NHTSA CAMPAIGN NUMBER: 15V568000 (ENGINE AND ENGINE COOLING). THE CONTACT WAS UNCERTAIN THAT THE OEM DEFECTIVE PART WAS REPLACED WITH THE NEW ENGINE ASSEMBLY. THE VEHICLE WAS NOT DIAGNOSED AGAIN BY A DEALER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED NO REMEDY. THE APPROXIMATE FAILURE MILEAGE WAS 139,000.