NHTSA Complaint #10578313 — 2000 GMC SIERRA 2500

I BEEN HAVING A PROBLEM WITH THE EXHAUST MANIFOLD BOLTS BREAKING OFF. I SPENT A TON OF MONEY REPLACING O2 SENSORS OVER THE LAST 4 YEARS. I'VE JUST CURRENTLY FOUND OUT THAT THE O2 SENSORS WERE NOT BAD, IT WAS ACTUALLY THE EXHAUST HEADER BOLTS BREAKING ALLOWING MY EMISSION SYSTEM TO MALFUNCTION. I'VE HAD 3 BOLTS REPLACED 2 MONTHS AGO AT A TIDY COST OF $1000.00. ONE WEEK AGO I WAS DRIVING DOWN THE ROAD AND SMELLED EXHAUST FUMES IN MY TRUCK CAB. I TOOK MY TRUCK TO MY MECHANIC AND HE FOUND 3 MORE BOLTS ON THE RIGHT SIDE OF THE ENGINE BROKEN OFF. NOT ONLY AM I WITHOUT A VEHICLE (BECAUSE AT THIS TIME I CANNOT AFFORD THE REPAIR) I THINK GENERAL MOTORS SHOULD CORRECT MY PROBLEM AND PAY FOR PREVIOUS REPAIRS. THIS IS POOR WORKMAN SHIP ON THEIR PART NOT TO MENTION A SERIOUS SAFETY HAZARD. ALL GM TRUCKS MANUFACTURED BETWEEN 1999 AND 2007 WITH V-8 ENGINES HAVE THIS PROBLEM. GM SHOULD MAN UP TO THIS ISSUE AND RECALL AND REPAIR THE FAULTY EXHAUST MANIFOLD BOLT PROBLEM. I FOR ONE THINK THIS COULD BE A SAFETY ISSUE AND ENVIRONMENTAL CONCERN. MY TRUCK CANNOT PASS AN ENVIRONMENTAL EMISSIONS TEST AT THIS TIME. *TR