TL* THE CONTACT OWNS A 2006 NISSAN ALTIMA. THE CONTACT STATED THAT WHILE DRIVING AT 55 MPH, THE VEHICLE BEGAN TO HAVE A LOUD KNOCKING NOISE THAT WAS HEARD FROM THE FRONT OF THE VEHICLE. IN ADDITION, BLACK SMOKE WAS OBSERVED COMING FROM THE HOOD OF THE VEHICLE AS THE CHECK ENGINE WARNING LIGHT ILLUMINATED. NO FLAMES WERE VISIBLE. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE PISTON HAD FRACTURED AND THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 06V223000 (ENGINE AND ENGINE COOLING). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 95,000.