2006 GMC Envoy Denali: engine stalls while driving

Filed Oct 24, 2014 · Electrical, Engine · 62,070 miles · CA

Engine stalled a few seconds after starting, then would not crank, only clicked. I had the car towed in for service. Technician checked battery. It was fully charged and vehicle had full voltage. Diagnostics determined low voltage out from the ignition switch. Recommended ignition switch should be replaced. I had the ignition switch replaced twice already. I have had to replace three ignition switches in three years at a total cost of $817. I understand that gm has recalled ignition switches on several models but the envoy is not part of that recall. Obviously my vehicle has the same problem as the recalled vehicles, why is it not part of the recall? The first ignition switch failed at 65-70 MPH on the freeway. This is a very dangerous problem. Since the rest of the electronics are connected to the ignition I have no safety equipment such as air bags. If I would have been in an accident, it could have been fatal.

Filed Aug 18, 2014 · Electrical · 117,000 miles · NY

I was driving 10 MPH and the SUV stalled put it in park to restart and it would not start had it towed to a ex gm dealer and they replaced the switch .

Filed Jul 23, 2014 · Electrical · 91,870 miles · NC

After exiting the interstate with speeds up to 65mph and before I could slow down to the to the current speed limit of 25mph the engine of my gmc envoy denali 2006 abruptly cut off. I steered to the curb to get out of the road of traffic with the first thought that I was out of gas; but I had a fourth of a tank. The gmc dealership first told me the ignition switch burnt out and my repair bill was $277. Several days later they called me and said the vehicle stalled again while they were test driving it. Now they say the ignition switch burnt out a module which would cost another $700. Total bill with labor and tax....$1059.57.

Filed May 2, 2014 · Engine · 83,000 miles · AL

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?

Filed Sep 19, 2011 · Driver assistance, Fuel system · 78,000 miles · MD

I bought a used 2006 gmc envoy denali with 69,000 miles in june 2010, by july I was replacing the air shocks on the right side of the vehicle. On about 7/28/2011 on the beltway where the speed limit is 65 I was in the far left lane approaching a left hand exit when my car stalled, I had run out of gas with no indication. I waited over an hour for someone to come put gas in my truck in about 100 degree tempature. I later ran out of gas on a back road coming to my house at night. Again no indicator light came on to let me know I was low on gas. Now the gas gauge floats between full and empty contionusly. This was a very dangerous and scary situation both times. My flashers were on the whole time and I had to change the battery. Now the air will not come out of the vents only the floor and defrost. But the most important thing is the gas gauge, I could have been involved in an accident both times.

Filed Sep 19, 2011 · Acceleration · 84,000 miles · TN

Tl* the contact owns a 2006 gmc envoy denali. The contact stated that while driving 35 MPH, the check engine warning light illuminated and the engine stalled. The vehicle was repaired by the dealer who replaced the sensor in the throttle body. The manufacturer was notified of the failure who advised that there were no recalls and offered no further assistance. The failure mileage was 84,000 and the current mileage was 93,000.

Filed Jul 18, 2011 · Engine, Fuel system · 42,000 miles · AZ

Fuel sensor failure in the gas tank. Causing the fuel tank to read empty when full, causing the SUV to stall when the tank is full, causing the check engine light to come one. This is a safety issue.

Filed May 23, 2011 · Fuel system · 43,000 miles · NJ

The problem is with my 2006 gmc envoy denali edition. About january 1, 2011 I received gas at a shell gas station. After receiving fuel the fuel gauge remained at e and did not g to f signaling a fuel tank. Every time I refill the tank the gas needle swings back and forth between f and e. Around half a tank the needle drops to e. The fuel gauge is not reading accurately and has caused the truck to stall once while driving. The check engine light is constantly on. I have not done any repairs because I've been told the fuel assembly has to be replaced which is a costly repair. To prevent the truck from running out of gas while driving I've been monitoring the trip meter and going by the gas mileage.

Filed Oct 13, 2006 · Electrical · 360 miles · FM

When braking the car feels like it will stall out @ around 20 MPH. Brought back to dealership. Computer chip issue that does not have a solution yet.