EXHAUST MANIFOLD BOLTS BROKEN, CAUSING UNCATALYZED EXHAUST EMISSIONS UNDER HOOD AND RESULTING IN INCREASED CO (CARBON MONOXIDE) LEVELS ENTERING THE CABIN THROUGH THE HVAC SYSTEM DURING ENGINE OPERATION AT SLOW SPEEDS OR WHILE PARKED. *TR
2007 GMC Envoy Denali
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Envoy Denali years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
24 reports with mileage · 10 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Exterior Lighting. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
34 reportsI RECEIVED A LETTER FROM GMC STATING THAT THEY HAD A KNOWN ISSUE WITH THE FUEL SENSOR ON MY VEHICLE, WOULD PAY HALF TO HAVE IT REPAIRED. WITHIN TWO WEEKS MY FUEL SENSOR GAUGE IS FLOATING FROM FULL TO EMPTY AND THE CHECK ENGINE LIGHT FOR EMISSION COMES ON WHEN THE FLOAT STARTS. WHY MUST I PAY FOR REPAIRS FOR SOMETHING THAT IS OBV…
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I RECEIVED A LETTER FROM GMC STATING THAT THEY HAD A KNOWN ISSUE WITH THE FUEL SENSOR ON MY VEHICLE, WOULD PAY HALF TO HAVE IT REPAIRED. WITHIN TWO WEEKS MY FUEL SENSOR GAUGE IS FLOATING FROM FULL TO EMPTY AND THE CHECK ENGINE LIGHT FOR EMISSION COMES ON WHEN THE FLOAT STARTS. WHY MUST I PAY FOR REPAIRS FOR SOMETHING THAT IS OBVIOUSLY DEFECT ON THE VEHICLE IF ALL OF THE OTHER COMPLAINT ARE ANYTHING TO GO BY?! *KB
HI I HAVE AN 07 ENVOY DENALI AND I HAVE A PROBLEM WITH MY ENGINE LIGHT BEING ON. TOOK IT TO GET A DIAGNOSTIC CHECK AND THE THROTTLE POSITION SENSOR NEEDS TO BE REPLACED. I HAVE REPLACED MY ALTENATOR AND BATTERY IN 2010. NOW MY BAGS THAT LIFTS THE TRUCK STRUGGLE AND DOES NOT WORK ON A DAILY BASIS, MY LIGHTS MAY NOT COME ON AND TH…
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HI I HAVE AN 07 ENVOY DENALI AND I HAVE A PROBLEM WITH MY ENGINE LIGHT BEING ON. TOOK IT TO GET A DIAGNOSTIC CHECK AND THE THROTTLE POSITION SENSOR NEEDS TO BE REPLACED. I HAVE REPLACED MY ALTENATOR AND BATTERY IN 2010. NOW MY BAGS THAT LIFTS THE TRUCK STRUGGLE AND DOES NOT WORK ON A DAILY BASIS, MY LIGHTS MAY NOT COME ON AND THE OIL GAUGE LIGHT IS ON (AND ALSO DROPPED DOWN TO ZERO) AND SERVICE STABILITRAK LIGHT STAYS ON. TWO YEARS AGO I REPLACE THE MOTOR THAT CONTROLS THE WINDOW THAT COST ME AROUND $500 BUCKS. I LIVE IN DC AND I CANNOT PASS INSPECTION BECAUSE OF THE ENGINE LIGHT IS ON. ON EDMUNDS.COM THERE ARE MANY TSB ISSUED FOR MY VEHICLE PURCHASED IN THAT YEAR. *KB
AT 38,000 MILES ON THE MY SUV MY GAUGE STOPPED WORKING, AND RAN OUT OF GAS TWO TIMES. I'VE HAD TO KEEP AN EYE ON HOW MANY MILES I DRIVE AND FILL IT UP EVERY 250-300 MILES. ALSO I'VE NOTICED THAT SOMETIMES MY BRAKE PEDAL STALLS FOR A QUICK SECOND. I LOVE MY VEHICLE BUT VERY DISAPPOINTED IN THE PROBLEM IT HAS IN ITS EARLY YEARS AN…
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AT 38,000 MILES ON THE MY SUV MY GAUGE STOPPED WORKING, AND RAN OUT OF GAS TWO TIMES. I'VE HAD TO KEEP AN EYE ON HOW MANY MILES I DRIVE AND FILL IT UP EVERY 250-300 MILES. ALSO I'VE NOTICED THAT SOMETIMES MY BRAKE PEDAL STALLS FOR A QUICK SECOND. I LOVE MY VEHICLE BUT VERY DISAPPOINTED IN THE PROBLEM IT HAS IN ITS EARLY YEARS AND TO FIND OUT THE THERE ARE HUNDREDS IF NOT THOUSANDS OF PEOPLE THAT HAVE THIS SAME PROBLEM AND GM WONT ISSUE A RECALL ON THERE VEHICLES. IT IS VERY UNSAFE TO DRIVE NOT KNOWING HOW MUCH GAS YOU STILL HAVE IN THE TANK. *KB
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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