GMC Yukon Denali XL stalling problems

Filed Jan 26, 2020 · Electrical · 149,600 miles · OH

Vehicle shut off while driving on the highway. No warning signals and happened multiple times over the course of the day. Speed was 70 MPH

Filed Jul 7, 2019 · Engine · 188,000 miles · VA

One week after purchasing the vehicle I broke down due to an oil pressure sensor. Two weeks after that I broke down (stalled out in the road) due to 2 lifters collapsing and the camshaft being damaged. After replacing all lifters, the camshaft, spark plugs and wires, as well as another oil pressure sensor just in case the other one was bad I still have low oil pressure. This cost $3,000.00! I left the shop and broke down on my way home with a flashing engine light and the stabilitrak light and message flashing. It shook so hard I thought it would explode in the road and then stalled out! It was towed back to the shop where it continues to sit. Its been there 3 weeks. Its been at the shop longer than I've gotten to drive it. After googling what might be causing the problem it appears this is not uncommon and gmc/chevrolet is well aware of the faulty engine. Thousands of posts are on different sites complaining how even though they have put their vehicle in the shop and had the repairs done, there is something in the engine that causing the issues again! The manufacturer is well aware they are putting lives at risk repeatedly and causing financial hardships for the consumer but it is obvious they are concerned only about their bottom line and not lives.

Filed Nov 23, 2018 · Suspension, Transmission · 10,000 miles · TX

When coming to a stop there would be a sudden surge and it felt like the vehilce was being pushed forward. There has been a few occasions where we almost hit something in front of us because of this surge. There was a bad shutter though out the vehicle at 30 to 50 MPH. Made complaints to dealer. They couldn't duplicate the problem. This was at roughly 6k miles at the time of the first oil change. At 10k miles the vehicle stalled out and died in our drive way after putting it into reverse to back out. The vehicle rolled back into the street as our driveway is at a incline with out any functions or controls. Lucky traffic was light and they were able to avoid hitting us. I was able to start it eventually and drove its strait to the dealership. They found the torque converter went bad and replaced it. Complained about the rough ride, noises and loose feel coming from the front end several times at 20,000 miles and 30,000 miles. When driving the vehicle over bumps while in a curve the vehicle would jerk to the side pulling the steering wheel hard to the side it was pulled towards. There were a few occasions where we almost hit a vehicle or concrete wall. They finally replace some components on the front end. No more noises from the front end for about 2,000 miles and then it comes back. The shutter is back along with erratic shifting. Service replaces the torque converter again at 45,000 miles. This time it last a little bit long and I don't start having issue with the torque converter until nearly 60,000 miles. The front end still pops, creaked and feels loose at times and the torque convertor is still failing.

Filed Dec 22, 2017 · Transmission · 50,000 miles · SC

Active fuel management system in 2015 gmc yukon denali xl-- engine was running in traffic and stalled out at intersection making a turn. Dealership diagnosed as bent push rod, broken valve spring, broken lifter. This has been linked to faulty active fuel management system with gmc engines. There is an active service bulletin from gm concerning this problem. Under existing powertrain warranty, gm agrees to fix the broken engine components, but will not address the underlying root cause of the problem, the afm system. The gm customer service rep stated that it is not gm's current policy to address the afm system even though it is a known problem. The dealership service department agrees this is the problem. Documentation online from other consumers validates that this is a widespread issue. It is a safety concern because unless the afm system is addressed, there is a risk the engine will fail in traffic. I feel like gm is unwilling to address this issues because there is no easy, cheap fix and the problem is so widespread in its vehicles with afm systems. It is a potential public traffic safety concern as these engines age.

Filed Oct 4, 2017 · Engine · 6,000 miles · TN

I have a 2017 yukon xl denali. It has 6k miles. I purchased it new june of 2017.I was driving through a parking lot,went over a speed bump at about 3 MPH and then I notice the AC turned off.then I realized the RPM was at 0 and when I pushed the gas pedal there was no response. The engine had stalled out while driving. I took the car in for service and they were unable to replicate the issue. There were no codes stored on a car I'm told has about a bazillion computers (imagine that) and that there were no other customer complaints or "service bulletins" stating it was a known issue. Apparently if your gmc service dept can't replicate the issue...the car is obviously fine. I told them I'm not taking the car back. They would not allow me to continue using a loaner nor did they have a similar car even available if they would. They told me to contact gm customer service and create a case to which I did. At this time I'm still waiting to hear what gm is going to do but I've had to personally pay for a car rental because I'm not willing to drive a car that has experienced and issue as drastic as this which could kill someone. Hopefully gm recognizes this and either works to figure out the problem or take the car back to run extensive tests. I guess a problem like this isn't an issue until someone dies...which has already happened in other gm vehicles with similar stalling issues. If you experience an issue like this, please contact gm customer service and do as I did and refuse to take the car back. I've only read of a couple other instances of this on the new yukon platform/bodystyle (2015 and newer). I can guarantee that gm will be sued if I take this car back and end up in an accident because of it. I'm sure they'll deny it because there once again...won't be any codes to tell them the care died, so it'd probably me my fault anyways.

Filed Sep 5, 2017 · Engine, Fuel system · 103,000 miles · CO

When exiting highway coming up to a stop sign or stop light or just braking, the engine shuts off with no warning or sputtering, while still rolling with no warning. This usually happens when pulling a trailer. No power brakes or power steering. The engine has shut off 5 times in the last month and a half and taken to the dealership where I am told every time "can't duplicate so as of now nothing is wrong with the vehicle. I have had to steer clear of car in front of me several times as to not crash. Serious safety issue. Told by ed bozarth chevrolet dealership in colorado, that since no code was produced and can't duplicate the issue, nothing they can do. Told the problem is unknown. I have seen multiple forums where same make and years are having same problem. Here are just a few sites where you can see this is a safety issue with several gmc makes: http://www.tahoeyukonforum.com/threads/2007-gmc-denali-stalls-after-towing.73312/ https://www.cargurus.com/cars/discussion-t70408_ds604621 stalling-when-rolling-stop.html https://gmcowners.com/gmc-forum/showthread.php?t=24680 http://www.cadillacforums.com/forums/cadillac-escalade-ext-esv-forum-2007/278037-2007-escalade-stalling-when-rolling-stop.html I hope that some doesn't have to get injured or die for the federal safety agency takes this problem serious.

Filed Jul 16, 2017 · Acceleration, Transmission · 55,000 miles · NV

Over the past four months my 2012 yukon has been hesitating / stopping. I have accelerate into in the intersection and vehicle hesitated almost causing an accident. The check engine light has came on and off numerous times, flashing stabilization and traction switching on and off. I have taken it to the dealership at least five times each time they said there was nothing wrong with my vehicle second to the last time they stated I needed a new fuel pump which they replaced and the problem continued with in two days and continues to this day . The last time I took it in they stated there is an issue with gm vehicles from 2013 to 2017 causing stalling hesitation lack of performance in a setting in high ambient temperatures and there is no fix for it . I believe this is a great safety risk for individuals who live in high climate areas .

Filed May 19, 2017 · Engine, Fuel system · 165,670 miles · ME

The vehicle's engine shuts off while driving. Without warning. This happens at various speeds. Loss of brakes and power steering occurs after engine shuts off. This has happened on several occasions at varying speeds. Speed varying between 30 MPH to 70 MPH. Engine will restart (be turned back on after wait time at the ignition) and drive following these incidents, however incidents reoccur. Also upon taking it to a gmc chevrolet dealership for inspection, service department was unable to find any "codes" related to this. Fuel pressure was tested in stationary position and in driving and fuel pressure appeared fine. Dealership noted no issues. Upon picking the vehicle up after inspection the engine cut out again while driving on the way home, again without warning. Incidents occurred on dry roads. Outside temperatures have varied from 50 f to 90 f and length of drive time has also varied from three hours at time of occurrence to only minutes after start up. Incidents happen at random and not every time vehicle is driven.

Filed Sep 23, 2015 · Engine, Transmission · 120,000 miles · RI

Tl* the contact owns a 2004 gmc yukon denali xl. While driving approximately 60 MPH, the vehicle stalled. After several attempts, the vehicle restarted. The failure recurred numerous times intermittently. The vehicle was taken to a dealer for diagnostic testing. The mechanic replaced the tac module and electronic throttle body, but the failure recurred. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 120,000.

Filed Sep 21, 2015 · Driver assistance, Engine · 57,200 miles · MI

When taking off from a stop or at a slow speed the car stalls like its running out of gas, when that happens on the diagnostic center on the car reads "traction active", and then car behind me blows their horn telling me to move, then the car takes off. Its really scary when I'm in the middle of traffic in the intersection or trying to make a left turn and trying to go and it stalls. Sooner or later someone is going to run into the back of me or when I'm in the intersection I will be t-bone and someone is going to get killed or seriously injured. I took it to the gm repair center at art moran 9/10/2015 and they tell me there's nothing wrong. The service advisor reggie garrett ask if their was a certain time it would act like this and I told him it seems like when its hot outside is when I notice it. Then, the very next morning about a half mile into the drive it did the same thing. So I called reggie up and told him it doesn't make a difference if its hot outside or cool it does the same thing, and this is all while I'm on my way over to their repair shop it did this 7 time all at dead stops or slow speeds. Once I made it to the shop I ask reggie to get his tech. To drive it with his scanner plugged in, but he suggested I drive it but when it did it the scanner didn't record it. I going back there this week and on the way I'm going to record it on camera in an effort to document what going on.