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Gmc Sierra Engine Problems

540 owner complaints filed with NHTSA across 9 model years.

Complaints by Year

Worst year: 2001. Best year: 2008.

Owner Reports

A representative sample of complaints filed with NHTSA.

Engine · 2005 4

COMPLAINT ON GM EXHAUST MANIFOLD BOLT DEFECT, INFERIOR BRAKE/ FUEL LINES. MINE IS A 2005 GMC. DEFECTIVE EXHAUST BOLTS AFFECT 12 MILLION GM TRUCKS FROM 1999 TO 2007. GM EXHAUST BOLTS ARE TO SMALL BRITTLE FOR SECURING EXHAUST MAN...

Engine · 2003 4

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 INJECTOR...

Engine · 2004 4

DROVE FROM MY HOME TO COWORKERS (20MINS) LEFT TRUCK IN COWORKERS DRIVEWAY ,AND WENT TO WORK. ONE HOUR LATER COWORKER REC'D CALL FROM NEXT DOOR THAT MY TRUCK WAS ON FIRE.

Engine · 2004 4

I DROVE DOWN THE STREET AND THE TRUCK STARTED SMOKING. THE SMOKE STARTED TO INCREASE SO I TURNED THE TRUCK AROUND AND PARKED IT OUT FRONT OF MY HOUSE AND ALL OF THE SUDDEN FLAMES STARTED TO APPEAR. NEEDLESS TO SAY THE TRUCK JUST BLEW UP....

Engine · 2001 4

AS FAR AS I KNOW THE TRUCK WENT AROUND CORNER AND VEERED OFF THE ROAD IN TO A SNOW BANK DUE TO BLACK ICE AND INTO A TREE ON PASSENGER SIDE OF TRUCK .IT WAS A HARD HIT AND THE AIR BAGS DID NOT WORK .WHEN I GET THE ACCIDENT REPORT I...

Engine · 2003 4

I WAS PARKED ON A SLOPED DRIVEWAY (ABOUT 10 - 15 DEGREES). I STARTED THE ENGINE, STEPPED ON THE BRAKE PEDAL AND TOOK THE CAR OUT OF PARK INTO DRIVE. BRAKE PEDAL WAS NORMAL. I STARTED TO ROLL FORWARD AND WHEN I PUSHED THE BRAKE PEDAL THE ...

Engine · 2006 4

WE WERE IN A STORAGE FACILITY PARKING OUR CAMPER WHEN I GOT OUT OF MY GMC TRUCK...I LEFT IT RUNNING IN PARK BECAUSE IT WAS SO HOT OUTSIDE...WHILE I DIRECTED MY BROTHER TO PUT THE CAMPER IN PLACE WITH HIS VEHICLE. THIS TOOK APPROX. 20-30 ...

Engine · 2008 4

ON 04.12.2014 AFTER GOING TO THE STORE, PARKED UNDER THE CARPORT. THE TIME WAS 10PM. WHILE INSIDE HEARD A POP SOUND AROUND 10:15 PM. WENT OUTSIDE AND THE TRUCK WAS ON FIRE. PUT TRUCK IN NEUTRAL AND PUSHED IT FROM UNDER THE CARPORT, TRYIN...

Engine · 2000 4

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 B...

Engine · 2003 4

TL* THE CONTACT OWNS A 2003 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, A FIRE ERUPTED FROM THE UNDERCARRIAGE AREA. THE LOCAL FIRE DEPARTMENT WAS CALLED TO EXTINGUISH THE FIRE. THE VEHICLE WAS THEN TOWED TO THE CONTACT'S RE...

Engine · 2007 4

TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING 10 MPH, THE VEHICLE STARTED SMOKING FROM UNDER THE HOOD. THE VEHICLE WAS MERGED ONTO THE SHOULDER AND THEN EXPLODED IN FLAMES. THERE WERE NO INJURIES. BOT...

Engine · 2003 4

TRUCK WAS ENTERING MAJOR HIGHWAY,TRAFFIC BEGINS TOO SLOW DUE TO RUSH HOUR ,SEEING THIS OCCUR I STEPPED ON BRAKES EXPECTING TO SLOW DOWN ,UNTIL I REALIZED PEDAL HAD GONE ALL THE WAY TO FLOOR,THEN I LET UP AN PUSHED TO FLOOR AGAIN-NO BRAKE...

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