2006 GMC Envoy Denali XL fuel system problems

Filed Apr 10, 2019 · Acceleration, Fuel system · 210,465 miles · AL

The initial time (3/14) it occurred, I was out of town with my family, embarrassed to say the least. However, mainly uncomfortable, tired, and frustrated because my 87 years old dad was stranded for hours as well as my 66 years old sister who is recovering from cancer. This problem was a serious problem because of our location. We had gone to get dinner and ice cream after getting ice cream we back in the vehicle for it would not start. I called 911 no police ever showed nor would even stop to assist. After 2 1/2 hours, we contacted a church member to find out about a mechanic in the area that could possibly come check it out. Another church member came to check it first, by now 3 hours have lapsed and the vehicle starts. After this it has happened on three (3) separate occasions with me (3/19, 3/20, & 3/21) but my mechanic said it happened with him 3 or 4 times while he was driving it to check it out and while it was sitting just running not being driven. I was on the interstate once, once driving, and once parked and it would not start. The times I was by myself once was on the interstate, another was going through an intersection, and once was in a high crime area where I felt very unsafe for my vehicle and myself. My mechanic replaced the crankshaft and camshaft sensors and the problem persists. I had a diagnostic test performed but was told the items listed on the test 'may' be the problem. I have also had a problem with it accelerating while driving as if the gas is not distributing properly. It was as if it was choking up as if there was a clog. A dangerous place to be in traffic or going across a railroad track, which it has occurred several times with me. I actually was almost rear ended on the interstate.

Filed Mar 23, 2015 · Fuel system · 110,000 miles · IN

The gas gauge has completely stopped working. It consistently shows as empty even when tank is full.

Filed Mar 13, 2015 · Electrical, Fuel system · 109,000 miles · OH

Fuel gauge goes to empty when full stopped in traffic on i75 with grand babies they say its the fuel sensor and sending units are bad.

Filed Sep 17, 2013 · Fuel system · 50,000 miles · MA

Ran out of gas with the fuel gauge reading half full (vehicle had approx 50k mileage). After putting a couple of gallons in the tank went to the gas station and filled the tank. When the vehicle was started the gauge bounced to full and then to empty. It began bouncing up and down continuously, sometimes settling at half full or at empty. It continues to do this today (9/16/13) but mostly stays on empty with the fuel gauge light on all the time regardless of how much gas is in the tank. We now use the trip odometer to gauge the distance we travel so we know when to refuel. We were told by our dealer that it was the fuel sensor and would cost around $600-$700 to repair.

Filed Feb 13, 2013 · Acceleration, Electrical · 128,623 miles · GA

Tl* the contact owns a 2006 gmc envoy denali xl. The contact stated that the vehicle failed to accelerate over 40 MPH. The contact also stated that the engine and the low fuel warning lights illuminated although the fuel level was at max. The vehicle was taken to the dealer where the contact was informed that the throttle body and fuel pump needed to be replaced. The failure mileage was 128,623 and the current mileage was 138,182...updated 04-03-13 *bf updated 04/22/2013

Filed Nov 19, 2011 · Fuel system · 43,000 miles · NY

In february I was driving home with my 5 year old daughter on the thruway, when suddenly the car stopped working. I luckily pulled over to the shoulder but had to wait there in the dark, terrified that we would be hit from behind, as it was dark. Imagine my surprise when I found out the car was simply out of gas! The gas gauge did not read empty but that was the problem!! Since that time I have run out of gas several more occasions, once with 5 children in the car at night. Gmc is not issuing a recall and it needs to be done now!! This is a safety issue not only for the driver of these vehicles with the faulty sensor, but other drivers on the road also. Something needs to be done.

Filed Sep 20, 2011 · Fuel system · 44,000 miles · CA

With no advance warning, the fuel gauge started reading empty immediately when tank was filled. Possibly related or not, the flap in the fuel filler neck disappeared about the same time the problem started. Once the problem began, the fuel light would come on when the car was started and would stay on constantly. The check engine light is always on as well. As fuel level decreased sometimes the gauge would apparently read correctly (e.g. Below 3/4 tank). Stopping or starting sometimes caused the gauge to fluctuate; often the gauge goes up and down several times a minute. Over the last eight months the condition has worsened and the gauge often reads empty, with occasional swings up to approximately correct level (estimate based on miles driven since filling tank). However, the gauge never went below 1/8 tank, even though it was less than two gallons from empty in a 24-gallon tank.

Filed Jul 29, 2011 · Fuel system · 60,000 miles · MD

I am the owner of the gmc envoy denali, 2006 model vehicle. The gas tank sensor after a fillup began to malfunction. Specifically, the tank was filled, however, the gas tank fill indicator remained on empty. The failure of the sensor has caused the "check engine" light to come on and remain on.

Filed Jul 17, 2011 · Fuel system · 65,000 miles · NJ

2006 envoy denali check engine light came on fuel gauge stopped working properly. Dealer says it is the sending unit. If this is common shouldn't there be a recall.

Filed Jun 22, 2011 · Fuel system · 74,000 miles · MO

Gmc envoy denali xl 2006 fuel gauge issue. 1st incident - fuel gauge showed 1/4 tank gas available while traveling in I-70 il when vehicle ran out of gas while traveling at 65mph passing semi truck. Other vehicles behind me had to react to immediate slow down of our vehicle. Managed to successful pull over to verge of road without incident. Not realizing fuel gauge was faulty a week later similar situation occurred - ran out of gas as I was pulling up to an intersection - lights had just turned red and I was unable to apply enough pressure to brakes as we were heading downhill that I went through red light and 2 cars had to take evasive action to avoid crashing in to me. 2 young children in car at the time of incident. Realizing there was an issue - entire fuel pump system was replaced - total cost over $800.