TL*THE CONTACT OWNS A 2005 PONTIAC BONNEVILLE. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 MPH THE ENGINE STARTED TO LOSE POWER. WHEN THE VEHICLE STALLED IT WOULD NOT RESTART AND SMOKE STARTED WAS COMING FROM THE ENGINE. THE VEHICLE WAS TOWED TO A DEALER WHO WAS UNABLE TO DIAGNOSE THE FAILURE DUE TO THE SENSORS MELTING. THE VEHICLE HAS BEEN REPAIRED. THE FAILURE MILEAGE WAS 63,635.