VEHICLE IS EXPERIENCING A PROBLEM WITH THE EXHAUST FUMES WHICH SEEM TO BE GETTING INTO THE CAB OF THE PICKUP. VEHICLE HAS BEEN TO THE DEALERS ON SEVERAL OCCASIONS. ALSO, CONTACTED THE MANUFACTURER. HOWEVER, THEY DID NOT HELP THE OWNER WITH THIS PROBLEM. THE EXHAUST FUMES WERE COMING THROUGH THE AIR CONDITIONER AND HEAT VENTS. WHEN DRIVING, THE EXHAUST FUMES BURNED THE DRIVER'S EYES, AND GAVE OWNER A HEADACHE. *AK UPDATED 12/27/2005 - THE VEHICLE HAS ALSO BEEN HAVING INJECTOR PROBLEMS *NM