Owner-reported complaints naming the engine system, filed with NHTSA
Data refreshed
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2006 GMC Sierra 1500 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 8 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
DEFECTIVE CASTECH HEADS. LEAKING ANTIFREEZE INTO ENGINE. THINS OUT THE ENGINE OIL AND COULD ENGINE TO OVER HEAT OR SIEZE UP WHILE DRIVING. GM KNOWS OF THE DEFECTIVE HEADS BUT WILL NOT WARRENTY THEM. PLEASE CAN SOMEONE PLEASE HELP US POOR PEOPLE WHO HAVE GOT STUCK WITH THIS BAD DEFECTIVE DESIGN.
I HAVE A 2006 GMC SIERRA WITH THE 5.3L VORTEC ENGINE AND I FOUND OUT THAT THE CASTECH HEADS ARE FAULTY AND LEAKING COOLANT INTO THE ENGINE ALSO FOUND OUT THIS IS A COMMON ISSUE AND GM KNOWS ABOUT IT ,TECHNICAL SERVICE BULLETIN IS 06-06-01-019B WHICH STATES GM IS AWARE OF THE DEFECT THIS TRUCK WAS BOUGHT BY MY BOSS BRAND NEW AND I PURCHASED IT FROM HIM I BELIEVE GM SHOULD TAKE CARE OF THIS FOR MY FAMILY'S SAFETY. JUST NOTICED THIS THIS MONTH AND THIS TRUCK HAS BEEN SERVICED REGULARLY.
2006 GMC SIERRA QUIT RUNNING ON A TRIP WE WERE TAKING. IT STARTED MISSING AND EVENTUALLY WOULDN'T RESTART. THE TRUCK HAS 82K ON IT AND IS VERY WELL MAINTAINED. THE ENGINE WOULD TURN OVER BUT NOT START... NO SPARK? IT HAS BEEN TO VARIOUS SERVICE MECHANICS AS WELL AS MY ATTEMPT TO FIGURE OUT WHAT IS WRONG WITH IT. MANY NEW PARTS HAVE BEEN USED: ICM, CRANK SENSOR, CAM SENSOR, COIL... NO DIFFERENCE. THIS VEHICLE QUITTING ON A VERY BUSY HIGHWAY COULD HAVE CAUSED SIGNIFICANT INJURY TO MYSELF AND/OR MY PASSENGER. WHEN THE TRUCK WAS NEW IT HAD AN INTERMITTENT MISS AND WHILE STILL UNDER WARRANTY I RETURNED TO THE DEALER. THERE THEY WERE UNABLE TO FIND ANYTHING THAT WOULD CAUSE THE PROBLEM. THIS SAME MISS WAS PERIODICALLY PRESENT UP UNTIL THE TIME IT QUIT RUNNING ALTOGETHER.
TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT ILLUMINATED AND THE VEHICLE DECELERATED TO LESS THAN 10 MPH. THE CONTACT ALSO STATED THAT THE AIR BAG WARNING LIGHT CONTINUOUSLY ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURES. THE FAILURE MILEAGE WAS 150,000.
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 MINUTES WHEN ALL OF A SUDDEN MY TRUCK IS GOING IN REVERSE ALL ON ITS OWN RUNNING INTO SOME BOATS THAT WERE STORED THERE. WTH!! MY TRUCK GOT REAR END DAMAGE,BUMPER DAMAGE,LIGHT BROKEN AND MY TOPPER WAS MESSED UP AS WELL....ALONG WITH THE BOAT TRAILERS THAT IT HIT! WAS THERE ANY RECALL WITH THIS PROBLEM? I BOUGHT THIS TRUCK ABOUT 2 YEARS AGO WITH ONLY 29,000 MILES ON IT AND IT STILL ONLY HAS 38,000. *TR
TL*THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 40 MPH, THE CONTACT HEARD A SQUEAKING NOISE COMING FROM THE FRONT END OF THE VEHICLE. THE BLOWER MOTOR STOPPED WORKING. THE VEHICLE WAS DRIVEN TO THE DEALER AND THEY STATED THAT THE RESISTOR FOR THE FAN MOTOR OVERHEATED AND FUSED WITH THE WIRING HARNESS. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS UNKNOWN. THE CURRENT MILEAGE WAS 6,422 AND FAILURE MILEAGE WAS 6,000.
AT THE FIRST OIL CHANGE IN MY NEW 2006 GMC SIERRA, I FOUND PIECES OF METAL (ASSEMBLY FROM THE ENGINE) ATTACHED TO THE MAGNETIC DRAIN BOLT. SUCH IS USUALLY SYMPTOMATIC OF A DEFECTIVE BEARING OR SOMETHING. NO PROBLEM AS OF YET WITH THE VEHICLE, BUT REGISTERING THIS OBSERVATION. FOR RECORD PURPOSES. THE ATTENDANT AT THE PLACE WHERE I GOT THE OIL CHANGED SAID MY VEHICLE WAS THE FOURTH ONE HE'S OBSERVED WITH THE SAME KIND OF METAL PIECES. *TR
4.3 ENGINE STARTED SHAKING FOR NOT APPARENT REASON, MILEAGE AT INCIDENT 10,000 MILES. ENGINE RPM'S WOULD GO UP & DOWN AT IDLE & ROUGH IDLE IT DID THIS FOR A COUPLE OF DAYS. ENGINE SHOOK VIOLENTLY AND JERKED. THE VEHICLE STOPPED RUNNING WOULD NOT TURN ON. VEHICLE TOWED TO DEALER. DEALER HAD TO REPLACE ECM (COMPUTER) & CRANK SHAFT SENSOR. VEHICLE AFTER TWO WEEKS IS NOW ROUGH IDLE AT TIMES AT START UP & RPM'S AT IDLE STILL VARY AT TIMES. VEHICLE TAKEN IN TO DEALER AND TECH STATED NO HIDDEN CODES VEHICLE CHECKED OUT OKAY ACCORDING TO DEALER??? *NM
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
Data on this page last refreshed .