TL* THE CONTACT OWNS A 2004 CHEVROLET SILVERADO 2500 HD. WHILE DRIVING HE SAW SMOKE COMING FROM THE TAIL PIPE, AND THEN HE SMELLED A BURNING ODOR. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION. THE TECHNICIAN CONCLUDED THAT THE THERMOSTATS ARE NOT ALLOWING THE VEHICLE TO ACHIEVE OPERATING TEMPERATURE AND INJECTORS 5, 6, 1 ARE DEFECTIVE. THE REPAIR WILL BE PERFORMED AT THE OWNERS EXPENSE. THE FAILURE MILEAGE WAS 102000. THE CURRENT MILEAGE WAS 103000.