# 2000 GMC SIERRA 2500 — ENGINE AND ENGINE COOLING
> NHTSA complaint `1054686` · 2014-04-08 · General Motors, LLC
## Severity
- **Deaths:** 0
- **Injured:** 0
- **Fire:** Yes
- **Crash:** No
- **Police report:** No
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** GMC
- **Model:** SIERRA 2500
- **Year:** 2000
- **Manufacturer:** General Motors, LLC
- **Component:** ENGINE AND ENGINE COOLING
- **Miles at failure:** 106,000
## Narrative
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
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*