2004 GMC Sierra 1500 Engine Problems

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.

NHTSA ID

11162511

Incident

Dec 1, 2018

Mileage

131,000 mi

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.

NHTSA ID

10937654

Incident

Jun 1, 2016

Mileage

13,000 mi

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.

NHTSA ID

10626400

Incident

Aug 15, 2014

Mileage

76,400 mi

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

NHTSA ID

10558592

Incident

Jan 3, 2014

Mileage

112,000 mi

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

NHTSA ID

10470229

Incident

Aug 11, 2012

Mileage

96,494 mi

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

NHTSA ID

10415225

Incident

Jul 1, 2011

Mileage

28,000 mi

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.

NHTSA ID

10413390

Incident

May 20, 2011

Mileage

79,520 mi

I HEAR A TAPPING OF THE VALVES WHEN THE CAR IS ON. ALSO THE SPEEDOMETER WILL STOP REGISTERING HOW FAST I AM GOING. *TR

NHTSA ID

10396616

Incident

Nov 1, 2010

Mileage

60,000 mi

I OWN A 2004 GMC SIERRA 1500 THAT IS CURRENTLY BEING REPAIRED FOR CRACKS IN BOTH ENGINE HEADS. THE TRUCK HAS 90,000 MILES ON IT AND I HAVE KEPT UP ON ALL NECESSARY MAINTENANCE. THE PROBLEM BEGAN APPROX. 2 MONTHS AGO WHEN I NOTED A KNOCKING SOUND AFTER STARTING THE TRUCK COLD. THE KNOCKING WOULD DISSIPATE AFTER THE TRUCK WARMED UP. I WAS TOLD THE SOUND WAS CAUSED FROM DIRTY LIFTERS AND NOT TO BE CONCERNED AS LONG AS SOUND DISSIPATED AFTER IT WAS WARM. UPON HAVING MY OIL CHANGED 2 DAYS AGO, COOLANT WAS NOTED IN THE OIL. (HINTS THE KNOCKING) THE HEADS WERE PULLED AND BOTH WERE CRACKED AROUND WHERE THE HEADS BOLT TO THE BLOCK. IN TALKING TO THE MECHANIC, THE CAST THEY USED WHEN MAKING THE HEADS WAS BAD. APPARENTLY AROUND THE BOLT HOLES, THE ALUMINUM IS THIN. GMC HOWEVER ACCEPTED MILLIONS OF THESE AND ARE STILL USING THEM TODAY. THE REPAIR IS COSTING ME $3,400.00. *TR

NHTSA ID

10306622

Incident

Feb 3, 2010

HEATER CORE/NO HEAT SOMETIMES/FOUND CARPET WET ON PASS. SIDE. SEEMS IN CHECKING AROUND HARDLY NEVER@47,000 MI. SPENT 1200.00 TO REPLACE IT. APPARENTLY MUST REMOVE SEATS, CONSOLE,AND ENTIRE DASH TO REPLACE!!! IM REALLY,REALLY MADE ABOUT THIS!! *TR

NHTSA ID

10259725

Incident

Feb 20, 2009

Mileage

47,982 mi

ENGINE FAILURE 2004 GMC SIERRA SERVICE BULLETIN 06-06-01-019B INTERNAL COOLANT LOSS LEAK IN CYLINDER HEADS MFG BY COSTECH LEAD TO MY ENGINES DEATH WITH JUST 89,000 MILES. THIS IS A KNOW PROBLEM SINCE 2004 AND FROM OTHER PEOPLE I HAVE LEARNED GM WILL NOT COVER EXPENSES. *TR

NHTSA ID

10254663

Incident

Dec 2, 2008

Mileage

91,366 mi

I ALSO HAD TO HAVE THE ACTUATOR REPLACED ON MY GMC 2004 TRUCK. IT WAS BLOWING HOT WHEN THE A/C WAS ON AND SHOULD HAVE BEEN COOLING. IT WAS NOT CHEAP EITHER, IT ALSO HAD TO BE RECALIBRATED IN THE COMPUTER SYSTEM. I DIDN'T EXPECT THAT TO HAPPEN TO A NEW VEHICLE. *TR

NHTSA ID

10242175

Incident

Jul 17, 2007

REDUCED ENGINE POWER, THIS HAS HAPPENED ABOUT 7 TIMES. WHEN THIS HAPPENS THE ENGINE SHUTS DOWN TO 1500 RPMS MAXIMUM. TOOK TO DEALER, THEY TOLD ME THAT IT WAS THE THROTTLE BODY VALVE AND ACTUATOR ASSEMBLY. THIS PART WAS REPLACED AT A COST OF $481. WITHIN TWO WEEKS THE SAME PROBLEM HAS HAPPENED TWICE MORE. THIS IS DANGEROUS WHEN TRAVELING IN TRAFFIC. *TR

NHTSA ID

10200046

Incident

Aug 19, 2007

Mileage

41,600 mi