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EnginePart report

2006 GMC Envoy Denali Engine Problems

Complaints
12about this part
Share
14%of 84 total for the year
Median mileage
86,724miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 12 complaints about the engine of the 2006 GMC Envoy Denali, 14% of the 84 complaints for this model year. Where a mileage was given, the median is 86,724 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“In the morning the car run fine, but once the engine is warm and I start to run errands it stalls. If I wait about 10min or so... I must speed home or to a safe area to let the engine cool. If I come back in a few hours,the truck will start with no problem. It has been to the shop more often then I remember. Is there anyone having these same issues?”

NHTSA complaint #10586255, filed 2014-05, 83,000 miles

“In the rear compartment of my 2006 Gmc Envoy Denali there is a compressor. There must be a leak because my car looks like a low rider in the morning until I start it and the compressor comes on and in about 3 or 4 minutes it is back to it's normal drivable height. Has there been this problem with anyone else and is there a recall to fix this problem?”

NHTSA complaint #10533729, filed 2013-08, 114,000 miles

“My husband and I were traveling when the vehicle shut off with no warning at all and all the dash board lights came on. The vehicle would not restart but would turn. This happened saturday 9/2/17 on a country highway out in nowhere . We called a tow truck. Thank god for cellphones. On 11/12/2016 hub bearings replaced. 11/15/16 module and connector replaced and fuel level sensors and ring replaced. Three years ago A/C went out. Replaced.”

NHTSA complaint #11021659, filed 2017-09, 90,447 miles

“I was driving on the freeway at 65-70 MPH. The engine lugged a little like it was running out of gas but the tank was half full. The engine resumed running at full speed. A few seconds later the engine shut off. I was able to coast long enough to pull off the freeway. But without power steering and brakes this was not an easy task. Once the car stopped I turned off the ignition and put the car in park. I tried to restart the car but nothing happened. …”

NHTSA complaint #10649549, filed 2014-10, 45,435 miles

“After driving approximately 20 miles on cruise control I tapped the brakes to disengage the cruise control. The vehicle dramatically lost power and the check engine light came on. I was able to avoid other traffic and pull over on the freeway, I then drove off the freeway on the shoulder and into the nearest GM dealer at maximum speed of approximately 30 MPH. The problem was diagnosed several times resulting in rewiring of the throttle body connector and finally replacement of the throttle body after the third incident of the same issue. …”

NHTSA complaint #10537614, filed 2013-08, 75,329 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2007412%
20061214%

Other parts of the 2006 GMC Envoy Denali

Fuel system
27 complaints
Electrical system
19 complaints
Suspension
10 complaints
Exterior lighting
8 complaints
Transmission and drivetrain
8 complaints
Electronic stability control
7 complaints
Engine cooling
4 complaints
Other or unknown
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Equipment
3 complaints
Steering
3 complaints
Vehicle speed control
3 complaints

← All problems reported for the 2006 GMC Envoy Denali

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology