2004 GMC Sierra Engine Problems

WHILE DRIVING OVER 50MPH ON THE HIGHWAY I GET A VIOLENT SHAKING IN THE ENGINE AND THE STEERING WHEEL SHAKES BAKE AND FORTH. THE ENGINE SOUND VERY LOUD WHILE ITS DOING THIS. IT ONLY OCCURS WHEN I AM AT HIGHWAY SPEEDS.

TL* THE CONTACT OWNS A 2004 GMC SIERRA 1500. THE CONTACT STATED THAT THE VALVE HEAD WAS CRACKED AND THE ANTI-FREEZE WAS DEPLETED; HOWEVER, THERE WERE NO VISIBLE LEAKAGE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED THAT THE ENGINE NEEDED TO BE REPLACED. THE LOCAL DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 131,000.

TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500. WHILE DRIVING APPROXIMATELY 45 MPH, THE CONTACT NOTICED A LOT OF WHITE SMOKE EMERGING FROM THE TAIL PIPE. THE VEHICLE WAS PREVIOUSLY REPAIRED UNDER WARRANTY BY GWATNEY BUICK GMC (5700 LANDERS RD, NORTH LITTLE ROCK, AR 72117) FOR THE SAME FAILURE AS LISTED IN AN UNKNOWN TECHNICAL SERVICE BULLETIN REGARDING THE FUEL INJECTORS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED FOR THE RECENT FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

EXHAUST MANIFOLD BOLTS BROKEN

TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500. THE CONTACT STATED THAT THE VEHICLE HAD A MASSIVE OIL LEAK. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE FUEL INJECTORS WERE DEFECTIVE, WHICH FILLED THE CRANKCASE FULL OF FUEL AND WAS A KNOWN ISSUE. THE VEHICLE WOULD HAVE BEEN REPAIRED PER AN EXTENDED WARRANTY; HOWEVER, IT FELL OUTSIDE OF THE PARAMETERS OF THE EXTENDED WARRANTY, INCREASING THE RISK OF AN ENGINE COMPARTMENT FIRE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 112,000.

TL* THE CONTACT OWNS A 2004 GMC SIERRA 1500. THE CONTACT STATED THE HEAD GASKET LEAKS RADIATOR FLUID INTO THE MOTOR. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC THAT DIAGNOSED THAT THE ENGINE HEAD NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 130,000. THE VIN WAS NOT AVAILABLE.

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. *TR

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.

EXHAUST MANIFOLD BOLTS BREAKING OFF CAUSING EXHAUST LEAK WHERE MANIFOLD BOLTS ONTO HEAD. DUE TO EXHAUST LEAK NOW VEHICLE IS THROWING CODES FOR CATALYTIC THRESHOLD LOW. WHICH LEADS TO A MAGNITUDE OF PROBLEMS TO LACK OF POWER, POOR FUEL MILEAGE AND NOT BEING ABLE TO PASS EMISSION TEST IN SOME STATES. PROBLEM RESULTS IN UPWARD OF THOUSAND DOLLARS IN REPAIR FOR FAULTY BOLTS, AFTER RESEARCHING SAID PROBLEM IT IS A COMMON PROBLEM WITH GM V8 OF THIS YEAR OLDER AND NEWER AS WELL. THIS IS A MAJOR DEFECT AND FLAW IN GM'S DESIGN AND NEEDS TO BE ADDRESSED ASPA!!! THIS IS A PROB THAT IS AFFECTING EPA LAWS AND NEEDS ACTION TAKEN AGAINST GM TO FIX THIS PROBLEM BEFORE IT GETS WORSE. GM NEEDS TO BE HELD RESPONSIBLE FOR THEIR VEHICLES AND POOR DESIGN AND OR PRODUCTS THAT GO INTO THEM THAT CAUSES LAWS OR SAFETY TO BE BROKEN OR EFFECTED! *JS

TL* THE CONTACT OWNS A 2004 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE SUDDENLY STALLED. DURING THE FAILURE, THE TEMPERATURE GAUGE READING WAS HIGH AND STEAM APPEARED FROM UNDER THE HOOD. THE DEALER STATED THAT THE ENGINE CYLINDER HEAD WAS CRACKED. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 76,400.

I SMELLED EXHAUST FUMES IN THE CAB OF THE PICKUP TRUCK AND HEARD A SHRIEKING SOUND UNDER THE HOOD. I HAD TO PUT THE WINDOW DOWN TO RELIEVE MY DIZZINESS FROM THE FUMES. UPON INVESTIGATION I FOUND 3 OF THE 6 BOLTS BROKEN THAT FASTEN THE EXHAUST MANIFOLD TO THE ENGINE. EXHAUST FUMES ARE LEAKING FROM THE BURNED OUT GASKET. *TR

CRACKED CYLINDER HEADS, ALSO KNOWN AS CASTECH HEAD CASTING #706 THESE HEADS CRACK ON THE ENGINE CAUSE ANTIFREEZE TO MIX WITH THE OIL AND DESTROY THE ENGINE, I HAVE CONTACTED GM AND THEY WILL DO NOTHING FOR ME, EVEN THOUGH THERE HAS BEEN LAWSUITS AND ITS A VERY WELL KNOWN PROBLEM WITH THE VORTEC 4.8 AND 5.3L GM ENGINE. *TR

AT THE ABOVE LISTED DATE MY VEHICLE BEGAN BLOWING EXCESSIVE BLUE SMOKE THROUGH THE EXHAUST. I DISCOVERED AT THAT TIME THERE HAD BEEN A RECALL ON THE FUEL INJECTORS SEVERAL YEARS BEFORE. I ATTEMPTED TO REMEDY THIS WITH GM AT THAT TIME AND WAS TOLD I WAS TOO LATE PAST THE DATE TO GET SERVICE ON THE RECALL. I WAS NOT NOTIFIED OF A RECALL AND WOULD HAVE TAKEN CARE OF IT AT THAT TIME. IT CONTINUES TO BLOW EXCESSIVE SMOKE BUT ONLY AT IDLE. I WISH TO HAVE THE PROBLEM CORRECTED AS IT IS HURTING THE ENVIRONMENT. I WAS GIVEN A PRICE AT THE LOCAL DEALERSHIP TO REPAIR THIS ISSUE. I DON'T FEEL I SHOULD HAVE TO PAY TO HAVE IT CORRECTED AS THERE WAS A RECALL ON THE PROBLEM. *TR

EXHAUST MANIFOLD BOLTS BROKE OFF CAUSING THE DRIVERS SIDE HEAT SHIELD TO FALL AND JAM UNDER THE STEERING LINKAGE. THIS CAUSED ME TO ALMOST DRIVE OFF THE ROAD. I HAD TO FORCE THE STEERING WHEEL TO GET THE VEHICLE TO TURN. *TR

TL* THE CONTACT OWNS A 2004 GMC SIERRA 2500 HD. THE CONTACT STATED THAT WHILE DRIVING VARIOUS SPEEDS HE WOULD HEAR A LOUD NOISE COMING FROM THE ENGINE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS WHERE THE CONTACT WAS ADVISED THAT THE MANIFOLD BOLTS WERE FRACTURED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. IN ADDITION, THE CONTACT ALSO NOTICED THAT THE INSTRUMENT CLUSTER FAILED AND HE WAS UNABLE TO DETERMINE WHAT SPEED HE WAS TRAVELING, HOW MUCH FUEL WAS IN THE VEHICLE, ETC. THE VEHICLE WAS TAKEN FOR INSPECTION WHERE THE CONTACT WAS ADVISED THAT THE CLUSTER WIRING FAILED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS CONTACTED HOWEVER, THEY OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 50,000. THE CURRENT MILEAGE WAS APPROXIMATELY 53,000.

I BOUGHT THIS TRUCK FROM DEALER WITH 40151 MILES. I HAVE THIS TRUCK FROM 2007 TO PRESENT TIME WITH THE MILEAGE AT 51,000 MILES. THE TRUCK HAS BEEN USED FOR PERSONAL USE ONLY. I FEEL THAT THERE SHOULD BE A INVESTIGATION INTO THIS PROBLEM BECAUSE THIS WILL EFFECT MILLIONS OF GM TRUCKS. THIS PROBLEM WILL COST OVER $1000. TO FIX BECAUSE OF POSSIBLE FIRE,ENGINE FAILURE, EMISSIONS PROBLEMS, OTHER VERY COSTLY PROBLEMS THAT WILL RELATE TO THE BOLTS BREAKING OFF FROM DEFECT ON THE EXHAUST MANIFOLD. THIS CAN CAUSE VERY SERIOUS PROBLEMS. (THIS IS AS SERIOUS AS THE TOYOTA CAR PROBLEMS OR WORSE). I ALSO THINK WITH THE NEW AIR EMISSIONS STANDARDS THESE TRUCKS WILL NOT PASS THE INSPECTIONS. BECAUSE OF THE EXHAUST LEAKS ON THE MOTOR. THERE IS NO DOUBT I FEEL THIS SHOULD & CAN BE A CLASS ACTION SUIT. GM KNOWS OF THIS DEFECT OF THE BOLT BUT STILL NO RECALL. WHY MUST IT TAKE SOMEONE TO GET KILLED OR HURT BEFORE THEY FIX THE PROBLEM. I DON'T HAVE THOUSANDS TO FIX THIS PROBLEM & NOW WHEN I DRIVE I AM WORRIED ABOUT THE TRUCK GOING ON FIRE. GM MUST DO THE RIGHT THING TO CORRECT THE PROBLEM THE CAUSED. PLEASE KEEP ME INFORMED. THANK [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

2004 GMC SIERRA 6 LITER V8 - EXHAUST MANIFOLD BOLTS BROKEN OFF - $600 TO REPAIR. DESIGN AND/OR PART DEFECT. DEALER SAID THIS HAPPENS. RECALL OR HAVE GM CORRECT? *TR

TL* THE CONTACT OWNS A 2004 GMC SIERRA 1500. THE CONTACT STATED THAT THE RADIATOR DID NOT HAVE A PEACOCK TO DRAIN ITS COOLANT FROM. AN AUTHORIZED DEALER WAS NOTIFIED AND THE CONTACT WAS INFORMED THAT THE MANUFACTURER STOPPED USING PEACOCKS TO SAVE MONEY. THE CONTACT EXPRESSED CONCERN OVER THE SITUATION BECAUSE IT COULD LEAD TO A FAILURE OF THE RADIATOR. THE FAILURE AND CURRENT MILEAGES WERE 28,000. THE VIN WAS UNAVAILABLE. I WAS INFORMED THAT THE LOWER RADIATOR HOSE MUST BE REMOVED TO CHANGE COOLANT. IN DOING SO THE HOSE CAN BE DESTROYED AND COOLANT COULD BE SPILT ON THE GROUND. UPDATED 10/11/2011 *LN *TR

LEFT AND RIGHT SIDES REAR EXHAUST MANIFOLD BOLTS BROKEN OFF. IT LEAKS EXHAUST, MAY BE A FIRE HAZARD AND COULD CAUSE EMISSIONS FAILURE AND EMISSIONS COMPONENTS FAILURES. THIS PROBLEM IS ON A 2004 GMC 6.0 ENGINE. NOTICED TICKING NOISE AT ABOUT 38000 MILES AND IT WOULD GO AWAY AFTER 30-45 SECONDS. A GM REP SAID IT WAS MOST LIKELY THE SKIRT LESS PISTONS AND NOT TO WORRY. HAD SOME WORK DONE AT A GARAGE ABOUT A WEEK AGO AND MECHANIC POINTED OUT THE BROKEN BOLTS. *TR

TL* THE CONTACT OWNS A 2004 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING 20 MPH, HE HEARD A NOISE COMING FROM THE ENGINE. THE VEHICLE WAS TAKEN TO THE LOCAL MECHANIC, WHO STATED THAT THE FAILURE WAS DUE TO THE CYLINDER HEADS BEING CRACKED, CAUSING THE ENGINE TO LOSE OIL AND COOLANT. THE LOCAL MECHANIC REPLACED THE CYLINDER HEADS, THE GASKET KIT, BOLTS AND NUTS. THE MANUFACTURER DENIED ASSISTANCE WITH THE REPAIRS. THE FAILURE MILEAGE WAS 78,000 AND THE CURRENT MILEAGE WAS 79,520.