2003 GMC Sierra Fuel System Problems

I WAS DRIVING HOME FROM WORK ON I-75 AND STARTED DETECTING A STRONG SMELL OF GASOLINE. I PULLED OVER AND INSPECTED THE VEHICLE. I FOUND THAT THE FUEL LINE HAD RUSTED AND WAS SPRAYING GAS EVERYWHERE. UPON FURTHER INSPECTION, I FOUND THAT ALL THE LINES FOR THE FUEL AND BRAKE SYSTEM WERE SEVERELY RUSTED AND WILL NEED TO BE REPLACED TO AVOID CATASTROPHIC FAILURE THAT COULD RESULT IN SERIOUS INJURIES TO MYSELF AND OTHERS ON THE HIGHWAY. I HAVE RESEARCHED AND FOUND THAT THERE HAVE BEEN THOUSANDS OF COMPLAINTS FILED, BUT NO ACTION TAKEN. AS AN ADDED NOTE...I BOUGHT THE TRUCK NEW, IT IS KEPT IN THE GARAGE MOST OF THE TIME, AND I DO NOT LIVE IN A STATE THAT IS KNOWN FOR HEAVY SNOW FALL OR SALT USAGE. I ALSO HAVE A 1965 MODEL CAR THAT HAS NEVER HAD THE FUEL LINES OR BRAKE LINES REPLACED.

TL* THE CONTACT OWNS A 2003 GMC SIERRA. WHILE DRIVING APPROXIMATELY 45 MPH, THE RPMS INCREASED TO 3,500 WITHOUT WARNING. THE DEALER DIAGNOSED THAT THE FUEL LINES WERE RUSTED, FRACTURED, AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 157,000.

BRAKE LINE LEAKS, BRAKE STOPPED WORKING BECAUSE OF RUSTED BRAKE LINES. ALSO FUEL AND TRANSMISSION LINES ARE RUSTED BADLY. *TR

TL* THE CONTACT OWNS A 2003 GMC SIERRA 2500. THE CONTACT STATED THAT AFTER INSPECTING THE VEHICLE, HE NOTICED THAT THE OIL LEVEL WAS ELEVATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL INJECTORS NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED AFTER APPROXIMATELY 30,000 MILES AND THE VEHICLE WAS EMITTING SMOKE. THE VEHICLE WAS REPAIRED WITH NEW FUEL INJECTORS BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 209,000.

I OWN A 2003 GMC DURAMAX 167000 MILES, IT HAS BEEN A GREAT TRUCK UNTIL RECENTLY, AFTER ENGINE GETS HOT IT WILL NOT START BACK UP UNTIL IT HAS COOLED OFF! HAVE NOT BEEN ABLE TO FIND THE PROBLEM YET, BUT FOUND A LOT OF COMPLAINTS ONLINE FROM PEOPLE WITH THE SAME PROBLEM, [INJECTORS], VERY EXPENSIVE TO REPAIR!!! THIS PROBLEM IS VERY FRUSTRATING, WOULD BE GREAT IF GENERAL MOTORS WOULD CORRECT THIS PROBLEM!!!! *TR

TL* THE CONTACT OWNS A 2003 GMC SIERRA 2500. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT NOTICED EXCESSIVE FUMES COMING FROM THE EXHAUST OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT FOUR FUEL INJECTORS NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, HOWEVER, THE FAILURE RECURRED ON MULTIPLE OCCASIONS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 118,736.

VEHICLE GOES INTO REDUCED ENGINE POWER MODE AT INTERSTATE SPEEDS WITHOUT WARNING AND INCREASES RISK OF BEING REAR ENDED, DOES NOT HAVE ENOUGH POWER TO SAFELY GET THE VEHICLE OFF THE ROAD WHEN IN THE LEFT LANE WITH OTHER CARS BEHIND. MORE INSTANCES OF THIS SAME SCENARIO OVER THE PAST FEW MONTHS THAN I CAN COUNT. THROTTLE BODY HAS BEEN CLEANED. THERE ARE TOO MANY INTERNET FORUM POSTS DETAILING MANY DIFFERENT PARTS HAVING BEEN REPLACED BY DEALERSHIPS AND OTHER MECHANICS AND THE PROBLEM STILL EXISTING TO JUST START REPLACING PARTS BECAUSE THE COSTS TOO QUICKLY IS UNSUSTAINABLE. *TR

I WROTE GM ON OCTOBER 26, 2013 ABOUT MY 2003 GMC SIERRA DURAMAX DIESEL 6.6L 6L THAT JUST RECENTLY STARTED BILLOWING BLUISH BLACK SMOKE CONSTANTLY FROM THE EXHAUST AND COSTING AN EXORBITANT AMOUNT OF MONEY IN GAS. I TOOK IT TO THE DEALER (QUALITY BY DILORENZO IN ALBUQUERQUE, NEW MEXICO) AND THEY INFORMED ME THAT THERE WAS A BULLETIN ISSUED IN OCTOBER 2006 FOR LEAKING FUEL INJECTORS. THEY DIAGNOSED MY TRUCK WITH THE EXACT FUEL INJECTOR PROBLEM. THE TRUCK ONLY HAS 83,502 MILES ON IT AND I'VE BEEN INFORMED THAT THE NEXT TIME I TAKE IT FOR AN EMISSIONS TEST (A REQUIREMENT IN NEW MEXICO) IT WILL FAIL. I FINALLY SAVED UP ENOUGH MONEY TO GO AN OUTSIDE REPAIR SHOP ON JULY 15, 2014 TO GET MY FUEL INJECTORS REPLACED AND THE TOTAL CAME TO $4763.78. I FOUND OUT THAT THERE WERE TWO STRIPPED BOLTS INDICATING THAT THE FUEL INJECTORS WERE PREVIOUSLY REPAIRED (ADDITIONAL COST OF$12 EACH TO REPLACE THE 8 BOLTS). I CALLED THE ORIGINAL OWNER AND HE TOLD ME THAT THE INJECTORS WERE REPAIRED UNDER THE ORIGINAL BULLETIN (04039) IN JUNE 2005 AT TILLERY MOTORS IN BELEN NM. THEREFORE, THE FUEL INJECTORS WERE NEVER REALLY REPAIRED PROPERLY IN THE FIRST PLACE. I HAVE SPOKE TO ANOTHER WOMEN ([XXX]) AT THE GM CUSTOMER SERVICE CENTER. SHE IS AGAIN ELEVATING THIS ISSUE TO A SPECIALIST UNDER GM ID [XXX] FOR REIMBURSEMENT OF THE TOTAL COST (STANDARD 24-48 HOUR CALL BACK). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

WHILE DRIVING, LARGE AMOUNT OF SMOKE CAME OUT. TOOK IT TO GM DEALER WHO SAID THAT IT THE FUEL INJECTORS WERE LEAKING. LOOKED ONLINE AND NOTICED HUNDREDS OF REPORTS OF THE SAME ACTION. GMC APPARENTLY DID AN EXTENDED WARRANTY FOR THE ISSUE, BUT ONLY COVERED IT FOR 7 YEARS FROM TIME OF PURCHASE AND UP TO 200,000 MILES. TALKED TO LOCAL DEALER WHO DENIED THE SERVICE AND GM WONT REPLACE THE FUEL INJECTORS. *TR

2003 GMC SIERRA 2500HD THE INJECTORS WANT BAD WAS TOLD IT WAS THE FUEL HOUSING. SO CHANGED THAT NOW HAVING TO CHANGE INJECTORS. *TR

CHECK ENGINE LIGHT INVESTIGATED, AND CAUSE FOUND TO BE LOSS OF FUEL TANK PRESSURE DUE TO ROTTED OUT FUEL FILLER NECK. ORIGINAL PART MADE OF NON-CORROSION RESISTANT STEEL. OTHER CORROSION PROBLEMS WITH THIS VEHICLE HAVE INVOLVED BRAKE LINES. THE FIRST LINE WAS REPLACED IN 2007, WHEN THE VEHICLE WAS ONLY 4 YEARS OLD. A MORE EXTENSIVE REPLACEMENT OF CORRODED LINES WAS DONE IN 2008 OR 2009. THESE ARE SERIOUS SAFETY AND EMISSIONS RELATED PROBLEMS, AND THESE VEHICLES SHOULD BE RECALLED AS A RESULT OF THEM. OWNERS WHO HAVE PAID FOR REPAIRS IN THE PAST SHOULD BE COMPENSATED BY A REASONABLE AMOUNT. *TR

TL* THE CONTACT OWNS A 2003 GMC 3500 DURAMAX . THE CONTACT STATED THAT THE VEHICLE WOULD STALL WITHOUT WARNING. THE FUEL INJECTORS WERE REPLACED BUT THE FAILURE RECURRED AND CAUSED DAMAGE TO THE ENGINE. THE VEHICLE WAS NOT FURTHER REPAIRED. THE FAILURE MILEAGE WAS 80,000 UPDATED 9/20/11 *CN UPDATED 2/23/12 *CN

FAILED COMPONENT 1: DRIVING AT SLOW SPEED, REDUCED POWER LIGHT ENERGIZED AND ENGINES GOES TO IDLE SPEED WITH NO FUEL PEDAL RESPONSE. FAILED COMPONENT #2: EXHAUST MANIFOLD BOLTS IN CYLINDER HEADS BROKEN ON BOTH SIDES OF ENGINE, PASSENGER EXHAUST MANIFOLD CRACKED, EXHAUST IS LOUD WITH EXHAUST FUMES IN CAB. DEPENDING ON WHAT IS CAUSING THE FUEL SYSTEM FAILURE AND WHETHER THE CYLINDER HEADS HAVE TO BE REMOVED TO REMOVE THE BROKEN BOLTS, THESE REPAIRS COULD COST THOUSANDS.

FUEL LINE CORROSION RESULTING IN MULTIPLE LEAKS IN PRESSURIZED FUEL LINE. FUEL DRIPPED CONTINUOUSLY ONTO THE TRANSMISSION, INCLUDING SOME ELECTRICAL CONNECTIONS, AS WELL AS ONTO THE EXHAUST SYSTEM, CLEARLY REPRESENTING A FIRE HAZARD. WHEN PROBLEM FIRST STARTED, GASOLINE VAPOR WAS NOTICEABLE IN THE CABIN. 2003 GMC SIERRA 2WD EXT CAB FUEL LINE ASSEMBLY WAS REPLACE BY LOCAL MECHANIC ~$640 PARTS AND LABOR. *TR

STARTED VEHICLE AND FUEL INJECTOR IS NOT WORKING. *TR

TL*THE CONTACT OWNS A 2003 GMC SIERRA 2500 HD. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED TWO MONTHS AGO FOR THE FUEL FILTER HOUSING, WHICH CAUSED THE VEHICLE TO IMMEDIATELY STALL. SINCE JULY 3, 2009, THE FAILURE HAS BEEN RECURRING WHILE DRIVING 20 MPH. GM STATED THAT THEY DID NOT HAVE ANY PARTS AVAILABLE TO REPAIR THE VEHICLE DUE TO SO MANY CONSUMERS WHO WERE EXPERIENCING THE SAME ISSUE. GM IS RESEARCHING AN ALTERNATIVE TO REPAIRING THE FUEL HOUSING FAILURE. THE CONTACT FEELS THAT THIS IS A SERIOUS SAFETY DEFECT. THE FAILURE MILEAGE WAS 117,000. UPDATED 08/14/09. *LJ UPDATED 08/14/09.*JB

TL*THE CONTACT OWNS A 2003 GMC SIERRA 2500 HD. WHILE DRIVING 35 MPH, THE WARNING LIGHTS ON THE INSTRUMENT PANEL CONTINUED TO FLASH ON AND OFF. IN ADDITION, THE WINDSHIELD WIPERS ACTIVATED AND SMOKE WAS NOTICED UNDERNEATH THE HOOD. THE CONTACT HAD BEEN DRIVING FOR SEVERAL MINUTES BEFORE NOTICING THE SMOKE. THE HOOD COULD NOT BE OPENED AND THE FIRE DEPARTMENT WAS CALLED. A POLICE REPORT WAS FILED. TEN MINUTES LATER, THE VEHICLE WAS ENGULFED IN FLAMES AND DESTROYED. THE FAILURE AND CURRENT MILEAGES WERE 65,000. UPDATED 09/25/08 *BF THE CONSUMER STATED IT WAS A POSSIBLE FUEL LINE FAILURE. UPDATED 09/26/08. *JB

FUEL TANK DEVELOPED A LEAK WHERE FUEL LINE ENTERS THE TANK. *TR

2003 GMC SIERRA DURAMAX 3 INJECTORS FAILED AND REPLACED UNDER WARRANTY @ 25,000 MILES 8 INJECTORS FAILED AND REPLACED @ 35,000 MILES AND REPLACED UNDER WARRANTY 4 INJECTORS FAILED @ 120,000 AND NO WARRANTY COVERAGE OBVIOUSLY THERE IS AN INJECTOR PROBLEM. *NM

I OWN A 2003 GMC 3500 SIERRA WITH A DURAMAX DIESEL ENGINE. IT IS USED RECREATIONAL, AND HAS UNDER 30K MILES, BUT IS NOW 36 MONTHS OLD. THIS SUMMER 1/2 OF MY FUEL INJECTORS FAILED AND WERE REPLACED UNDER WARRANTY. I'M CONCERNED THERE THE REST OF THE INJECTORS WILL FAIL, AS HAS BEEN FREQUENTLY REPORTED BY OWNERS SHARING CONCERNS ON VARIOUS ONLINE FORUMS. I AM ADDITIONALLY CONCERNED THAT THIS FAILURE WILL OCCUR AFTER MY WARRANTY EXPIRES. I WOULD LIKE TO REQUEST THAT THE INJECTOR ISSUES BE RESEARCHED FOR 2003 DURAMAX ENGINES, AND THAT A RECALL BE ISSUED TO UPDATE VEHICLES WITH NEW INJECTORS THAT DON'T EXHIBIT THE SAME FLAWS/FAILURES, OR REQUEST THAT THE ENGINE WARRANTY BE EXTENDED TO 200,000 MILES AS WAS DONE ON THE 2001-02 MODELS. THE DATE OF THIS INCIDENT IS ESTIMATED. *JB