Owner-reported complaints naming the engine system, filed with NHTSA
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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 2008 GMC Envoy submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 12 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
CHECK ENGINE LIGHT IS ON. ACCORDING TO TESTS IT IS THE RESULT OF A DEFECTIVE THROTTLE POSITION SENSOR. THE LIGHT WILL STAY ON FOR A COUPLE OF DAYS AND THEN GO OFF FOR A COUPLE OF DAYS CREATING A ERROR MESSAGE THAT SOMETHING IS WRONG WITH THE ENGINE. WITH IT GOING ON AND COMING OFF IT IS NOW DIFFICULT FOR ME TO GET MY INSPECTION COMPLETED WITH THE SENSOR READING NOT BEING ACCURATE. *TR
GMC USED CHEAP BOLTS ON THEIR V8 MOTOR'S EXHAUST MANIFOLDS. I HAVE TWO BROKEN BOLTS ON ONE SIDE AND 1 ON THE OTHER. CARR OF VANCOUVER GAVE ME A QUOTE OF $ 2374.00 PLUS TAX TO FIX THIS PROBLEM. THEY SAID IT WAS A WELL KNOWN PROBLEM WITH ALL OF THE V8 MOTORS BY GMC. I CONTACTED GMC AND THEY REFUSE TO DO ANYTHING ABOUT THIS. I HAVE RESEARCHED IT ON THE INTERNET AND THERE ARE HUNDREDS OF PEOPLE WHO HAVE HAD THIS SAME PROBLEM. THE QUESTION ISN'T IF THIS WILL HAPPEN TO ONE OF THEIR VEHICLES BUT WHEN IT WILL HAPPEN. IT IS SUCH A WIDE AND KNOWN PROBLEM A COMPANY HAS ACTUALLY MADE CAME OUT WITH A BRACKET TO FIX THIS PROBLEM. I DON'T FEEL THAT THIS SHOULD BE A CONSUMER PROBLEM BUT IT SHOULD BE A MANUFACTURER PROBLEM. I WOULD APPRECIATE ANY HELP. I FEEL THAT THEY SHOULD HAVE TO RECALL THESE DEFECTIVE BOLTS AND REPLACE THEM WITH THE RIGHT ONES. I AM NOT OUT FOR ANY KIND OF SETTLEMENT OR SCAM ALL I WANT IS MY ENVOY FIXED. KRAL AUTO PARTS MAKES THE BRACKET. HTTPS://WWW.KRALAUTOPARTS.COM. *TR
OUR 2008 GMC ENVOY KEPT ON GETTING LOUDER AND LOUDER AS TIME WENT ON AND WHEN I WENT TO CHECK IT OUT I FOUND THAT THE EXHAUST MANIFOLD HAD A CRACK IN IT ABOUT 3.5 INCHES LONG. IF FEEL THAT THIS SHOULD BE A RECALL DO TO I CHANGED 3 OD THEM IN OTHER GMC ENVOYS IN THE LAST 6 MONTHS. I OWN A STATE INSPECTION REPAIR GARAGE IN PENNSYLVANIA.THIS IS A VERY POOR LAYOUT BY GM. ALSO THE SECONDARY AIR PUMP ON THIS SAME VEHICLE IS A COMMAND PROBLEM. AND THE WIPER SPRAY NOZZLE IS ALSO ANOTHER COMMAND POOR DESIGN. *TR
THE VEHICLE REAR AIR COMPRESSOR AIR DEFLATES OVER NIGHT OR AFTER SITTING FOR A WHILE. AIR COMPRESSOR. *TR
I STARTED MY VEHICLE IN THE AM AND IT MADE A LOUD MUFFLED NOISE. TOOK IT TO THE MECHANIC AND HE SHOWED ME A PICTURE OF A CRACK IN TH EXHAUST MANIFOLD. I LOOKED ONLINE AND SAW RECALLS FOR OTHER YEARS AND MODELS FOR GMC AND CHEVY. I THINK THE 2008 CHEVY ENVOY SHOULD BE INCLUDED. IT SEEMS TO BE THAT THE MANIFOLD IS DEFECTIVE.
TL* THE CONTACT OWNS A 2008 GMC ENVOY. THE CONTACT STATED THAT THE VEHICLE STALLED. THE VEHICLE WAS TAKEN TO THE DEALER, WHO ADVISED THE CONTACT THAT BECAUSE THE AIR PUMP WAS LOCATED UNDER THE VEHICLE, IT WAS LEFT EXPOSED TO DEBRIS, WHICH HAD BUILT UP IN THE AIR PUMP OVER TIME. THE VEHICLE WAS NOT REPAIRED. THE CONTACT CALLED THE MANUFACTURER AND FILED A COMPLAINT. THE FAILURE MILEAGE WAS 72,000.
I STARTED MY VEHICLE ON MONDAY MORNING AND IT WAS UNUSUALLY LOUD. AFTER INSPECTION, I FOUND MY MANIFOLD WAS CRACKED. *TR
TL* THE CONTACT OWNS A 2008 GMC ENVOY. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LAMP ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY STATED THAT THE SEAL THAT WAS ON TOP OF THE FIRE WALL WAS DAMAGED. AS A RESULT, THE WATER WAS SIPPING INTO THE ENGINE COMPARTMENT AND WAS GETTING ON THE COIL PACKS AND THE PLUGS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 59,000. THE VIN WAS UNAVAILABLE.
2008 GMC ENVOY 51,000 MILES EXHAUST MANIFOLD CRACKED I HAD IT REPLACED AND WAS TOLD BY DEALER A 3 DAY WAIT WOULD BE NECESSARY AS THEY HAD USED STOCK PARTS ON ANOTHER ENVOY WITH SAME PROBLEM . ADVISED ME NOT TO DRIVE BECAUSE IT MAY CATCH FIRE. *TR
BOUGHT THE VEHICLE LAST NOVEMBER FROM GEORGIAN PONTIAC BUICK GMC IN BARRIE ONTARIO CANADA LAST NOVEMBER 2009. LEARNED I HAD A CRACKED EXHAUST MANIFOLD ON MY 2008 ENVOY AT 87 000 KM. IT HAS NOT YET BEEN REPAIRED. RESEARCH IS ONGOING. *TR
I HAVING PROBLEMS WITH MY STABILITRAK SYSTEM THE ENGINE LIGHTS COMES ON AND I JUST HAD THE THERMOSTAT SENSORS CHANGE WHICH TOOK THEM THREE TIME TO FIND THE PROBLEM AND MY DRIVERS WINDOW SENSORS WAS REPLACED AND THERE A SUDDEN THUMB WHEN YOU BRAKE AS THOUGHT YOU HAVE BEEN HIT FROM BEHIND. *TR
I PURCHASED A 2008 ENVOY DENALI 7/08 DURING THE MIDDLE OF NOVEMBER WHILE DRIVE THE TEMP GAGE DROP TO THE LOWEST POINT AND STARTED CUTTING OFF HESITATING TO START. I THEN CONTACT ON-STAR THEY STATED IT WAS THE COOLING SYSTEM AND SHOULD BE TAKEN TO THE DEALER ON 10/19/09 I WENT AND WAS TOLD IT WAS THE TEMP SENOR WHICH WAS REPLACE THAT TUESDAY. THURSDAY THE SAME ISSUE ACCORD AGAIN I NOTIFIED ON-STAR THEY STATED THIS TIME IT WAS THE TRANSMISSION FRIDAY I WENT TO THE DEAL TO BE TOLD THEY COULD NOT WORK ON THE CAR UNTIL MONDAY. AS I WS SPEAKING TO A TECH THEY STATED IT SOUNDS LIKE THE TRANS AND THE MGR APPROACHED AND STATED I AM HANDLING THIS AND DIRECTED ME TOWARD THE DESK AND STATED HE HAD A RENTAL FOR ME AND ARRANGED A RIDE FOR ME. I TRULY BELIEVE THERE IS SOMETHING WRONG WITH THIS CAR AND TO MAKE THIS WORSE MY NAVIGATION SYSTEM HAS FAILED ME TWICE AS WELL. *TR
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 .