TL* THE CONTACT OWNS A 2006 DODGE DURANGO. WHILE DRIVING APPROXIMATELY 55 MPH, THE CHECK ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN INTO THE DEALER WHERE THE TECHNICIANS REPLACED THE EGR VALVE. THE CHECK ENGINE LIGHT CONTINUED TO ILLUMINATE INTERMITTENTLY. THE VEHICLE WAS TAKEN TO THE DEALER A SECOND TIME WHERE THE TECHNICIANS WERE UNABLE TO DIAGNOSE THE FAILURE. THE CONTACT TOOK THE VEHICLE TO A DIFFERENT DEALER WHERE THERE WERE SEVERAL REPAIRS MADE. THE VEHICLE CONTINUED TO EXPERIENCE THE FAILURE. WHILE DRIVING APPROXIMATELY 55 MPH, THE CONTACT NOTICED THE INTERIOR OF THE VEHICLE FELT HOT AND THERE WAS SMOKE INSIDE THE VEHICLE. THE CONTACT PULLED OVER TO THE SIDE OF THE ROAD. THE CONTACT WAITED FOR THE VEHICLE TO COOL DOWN AND DROVE TO THE DEALER. THE TECHNICIANS NOTICED THE WIRING HARNESS AND THE INTAKE MANIFOLD HAD MELTED. THE TECHNICIANS REPLACED THE LIFTERS, WIRING HARNESS, INTAKE MANIFOLD AND THE OXYGEN SENSOR. AFTER THE REPAIRS WERE MADE, THE CHECK ENGINE LIGHT CONTINUED TO ILLUMINATE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 72,000.