Other Fuel System Problems of GMC Yukon - part 2

Vehicle engine stalled while driving in school parking lot. Safety concern as car when from “r” to “n” while backing up (2x). Engine would not turn on afterwards. Vehicle code p129f showed trouble with fuel pump power flow control module.

See all problems of the 2021 GMC Yukon 🔎.

High pressure fuel pump regulator failed and cause gas leaking, reduced engine power and gas smell coming back in vehicle. It was also blowing out white smoke. It had delayed ignition starting. The engine light did come on. Several makes and models of GMC has had recalls for this problem. The 2017 GMC Yukon was not included for this recall and should have been.

See all problems of the 2017 GMC Yukon 🔎.

I am writing to express serious safety concerns regarding our 2023 GMC Yukon xl denali, which has been in our possession for less than two years and has only 24,000 miles. On multiple occasions, while driving at high speeds on the freeway with our four young children, the vehicle unexpectedly lost power and shifted into neutral without warning. This occurred approximately four times on March 9, 2025, when we contacted onstar for assistance. Despite their response indicating no alerts on their end, we were advised to reach out again if the issue persisted. Unfortunately, the problem did occur again on March 16th, which prompted us to contact onstar and have the vehicle towed to the nearest dealership for further evaluation. The service department has since informed us that the motor requires replacement. Upon conducting additional research, it seems this may be a known issue with many vehicles manufactured by gm around the same time. We are deeply concerned by this safety hazard, especially given that the malfunction could have led to a life-threatening accident. While we are grateful that we were fortunate enough to avoid any serious consequences, we believe a solution beyond standard repairs is necessary to restore our confidence in the safety of this vehicle. Our family’s well-being and trust in the reliability of our vehicle are of the utmost importance.

See all problems of the 2023 GMC Yukon 🔎.

In March 2025, a situation happened to me during a six hour round trip drive. I experienced a loss of acceleration. Vehicle engine felt it was stumbling when accelerating or seemed like I had ran something over. I don't remember seeing any lights coming on. Pulled over immediately, turned off the vehicle. Turned it back on and drove back home three hours worried it may happen again. I didnt see any warning lights on the trip.

While driving back home on the highway (I-95) on February 26, 2025, my truck stopped accelerating right in the middle of the highway and cut off. Tried to crank it back up to no avail. I had it towed to the nearest GMC dealer which is GMC coral springs. They did an inspection and immediately communicated that the fuel pump module had failed and needed to be replaced. The only option at the time was to just have it fixed because I was out of warranty. At the time, I had about 100k miles on it and the guy at the dealer told me that he's supriesed it lasted that long as those modules usually go out before 100k mile. I got it fix and on March 1, 2025, the truck was ready for pickup. Fast forwarding, now GMC is recalling the 2021 Yukon with recall n252516900 for the same exact issue. I spoke to GMC corporate this morning to see if I can be reimbursed for the cost. When the rep tina ran my VIN, she states my VIN wasn't attached to the recall number. So I was trying to understand that the issues are the same, why can't they reimburse me. Same issue on the same year truck. GMC refused to help me. I'm so disappointed because I'm not even sure why my truck wasn't included in the recall but has the same issue. I need your help. Please and thank you. (I contacted the dealer to have the email me a copy of my invoice for the service at the time, however I haven't received it. I will contact them again to see if they can email it again. But I will obtain a copy of it even if I have to drive out ther).

Fuel line rubs between cab and tank making a hole. Fuel pours out on when driving or running. Huge fire risk. Glad I caught it before the car burned up with us in it.

See all problems of the 2015 GMC Yukon 🔎.

The engine of my 2024 GMC Yukon denali failed unexpectedly at 45 mph, shutting off without warning and shifting into neutral. My wife, three passengers, and two dogs were in the vehicle, which coasted to a stop. After several attempts, it restarted, and the check engine light illuminated. Alpine Buick GMC confirmed catastrophic engine failure, requiring replacement of the engine, radiator, hoses, and other parts. The vehicle remains at the dealership, and the failed components are available for inspection. This sudden shutdown posed serious safety concerns. My wife lost control over acceleration and power steering, increasing the risk of an accident. Had this occurred on a highway or in traffic, the consequences could have been severe. This raises concerns about the engine’s reliability and potential risks to other drivers. Alpine Buick GMC confirmed the engine failure and the need for full replacement. I am the sixth customer awaiting this repair, indicating a broader issue. The estimated wait time for an engine is two weeks to three months, creating a significant disruption. Inspection by manufacturer, police, or insurance the vehicle has been inspected by dealership technicians but not by GMC representatives, police, or insurance adjusters. I am open to further inspections to determine the cause and assess whether a recall or corrective action is necessary. No warning lights or symptoms appeared before the engine shut down. The check engine light illuminated only after restarting on the third attempt. The absence of prior alerts suggests a flaw in the vehicle’s diagnostic system. Expedited engine replacement – given the safety risks, I request priority replacement. Investigation into failure cause – GMC should assess whether this is a manufacturing defect. Review of similar cases – if widespread, a recall or service bulletin may be necessary. Better communication – regular updates on repairs and GMC’s actions are needed. I expect prompt action to resolve.

See all problems of the 2024 GMC Yukon 🔎.

I was driving home from a long trip and heard a large pop. Several warning signs and messages began popping up and the vehicle was shaking and struggling to maintain speed. I was able to get home and get my family out of the vehicle and get it to a dealer down the road. They stated the fuel injector and harness had failed.

Our 2023 GMC Yukon xl denali that has suffered multiple severe mechanical failures well beyond what is reasonable for a vehicle of this class. G at approximately 14,000 miles, the vehicle’s 6. 2l engine catastrophically failed, rendering it inoperable and requiring a full engine replacement. The engine seized and failed while operating the vehicle with her 3 small children on board and nearly caused a catastrophic accident. As a result, the vehicle was out of service for eight weeks, an unreasonable disruption and an unacceptable failure for a luxury SUV of this caliber. Now, (02/11/2025) at just 20,400 miles, the vehicle’s injectors have failed, further reinforcing that this vehicle is defective, unreliable, and unfit for continued ownership. This vehicle was purchased with the expectation of owning a dependable, high-performance SUV—not one plagued with major mechanical failures at such low mileage. The repeated, severe defects have substantially impaired the vehicle’s use, value, and safety, leaving use without reliable transportation for extended periods. Given these circumstances, it is clear that this vehicle does not meet the quality and durability standards expected from general motors’ flagship SUV lineup and present serious risks of catastrophic injuries and/or death.

I’ve inserted the question and their answer: what component or system failed or malfunctioned, and is it available for inspection upon request? lifter valve number six failed causing it to shatter and send pieces of it throughout the engine along with other debris into the cylinders. How was your safety or the safety of others put at risk? vehicle had loud engine knock, pulsation of power, had to pull off on main highways due to loss of power over 400 miles away from home. Has the problem been reproduced or confirmed by a dealer or independent service center? yes, engine was serviced by gm dealership in baldwinsville, NY for over $8,500. Will attach copy of bill. Now is doing same thing, again. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? gm as stated above. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? check engine light flashed, traction control light came on.

Recurring system problems: my vehicle continues to exhibit intermittent system failures, causing unpredictable and potentially dangerous driving conditions. These issues have included: engine stalling, braking issues, electronic system malfunctions].

See all problems of the 2011 GMC Yukon 🔎.

I bought the vehicle in October 2024 ever since then I have been trouble with the differential, the automatic starter doesn't start the vehicle unless you are at least one feet away from the vehicle. I drove to work when I got off and got in my vehicle my check engine light was on. The vehicle was saying there was an issue with the battery, antilock braking system. I bought an extended warranty up to 150,000, I currently have 63,400 on my vehicle. Empire Buick GMC of white plains has not been honoring my warrantee, I had to rent a car to get back and forth to work because of fear of riding the nyc subway.

My 2021 Yukon denali has roughly 70k miles and this is now the second time that my engine shut off while driving >55mph on the interstate in the past 3 months. The first time, I had the sensation that the car was running out of gas when I went to accelerate. After about 5-10 seconds, the engine turned off, but the electronics stayed on. I coasted to the side of the road and tried multiple times to start it without success. The engine sounded fine while turning over and over, but it would never start. That episode turned out to be a bad fuel pump control module, and after roughly $400 at the local firestone auto repair shop, I was on my way (fyi, they didn't diagnose it; I learned that was the likely problem by reading online forums and basically demanded they replace the fpcm). Now, here I am about 3 months later, and it happened again, just two days after I had the vehicle serviced at the GMC dealership for a check engine light that was intermittently coming on. The technicians said I needed an update to the engine control module which was completed. The main difference was that this time, I had zero warning. There was no sensation of running out of fuel or funny noises from the engine. I just went to give it gas and noticed it wasn't working. There was a warning on the dash saying push button to start the vehicle (once again, the electronics stayed on when the engine shut off). After coasting to the side of the road, the battery seemed to be good, but the engine wouldn't turn over. I had it towed to the shop and am being told I will likely need a new engine!.

My vehicle radiator fan immediately cut on high when I turned on the vehicle. The temperature of the vehicle was normal. I also experienced this when the engine was completely cold. I was assured there was no need to tow the vehicle but I could drive and schedule service with dealer. The software triggered a reduced acceleration condition. This did not allow me to accelerate as needed while navigating an interstate interchange.

See all problems of the 2022 GMC Yukon 🔎.

I am the owner of a 2021 GMC Yukon denali with the 6. 2l v8 engine (VIN: [xxx] ). This vehicle has exhibited multiple serious issues affecting safety, drivability, and reliability. 1. Engine noise & oil consumption: since purchase, the vehicle has had a persistent loud knocking/tapping sound, especially under acceleration. The engine also consumes an excessive amount of oil between scheduled oil changes, with no visible leaks. I reported this to the dealership multiple times, but since there is no active recall or TSB, they refused to diagnose or repair the issue under warranty. I have since learned that many other 2021 Yukon denali owners with the same 6. 2l engine are experiencing similar issues and some have had repairs or engine replacements covered by gm. I have received no such support. 2. Braking problems: the vehicle has ongoing brake performance issues. Despite replacing the brake components multiple times, the brakes feel inconsistent and unsafe, especially during highway driving or sudden stops. There is vibration and uneven response, and the braking system does not inspire confidence. These problems have persisted despite attempts to correct them. 3. Suspension/handling concerns: the suspension feels unstable and loose, especially at highway speeds or when turning. The ride quality is poor, and there is noticeable sway and body roll, which creates discomfort and concern for vehicle control. 4. Fuel/propulsion system: the engine does not always respond smoothly to throttle input. I’ve noticed occasional hesitation or surging, which may be related to the previously mentioned oil consumption or fuel delivery. Again, the dealership has been unable or unwilling to resolve these issues without charging diagnostic fees. I’ve reported these issues to my local GMC dealer on multiple occasions, but no lasting solution has been provided, and I have not been able to afford expensive diagnostic costs out of pocket—especially for a vehicle of this price information redacted pursuant to the freedom of informatio.

After only 47,000 the Yukon started with hard starts and triggering a check engine light. Owner suggested fuel issues, the dealership suggested a bad wire. They adjust the "bare wire", and mentioned that the fuel pumps on these vehicles have issues and they would order one- but give them a holler when we have additional problems. The Yukon continued to hard start, evolving into stalling when started. The dealership was alerted but due to lack of engine codes being stored the dealership couldn't help us. Eventually when driving 57mph, the Yukon cut engine on a busy route, driver was able to get the Yukon to the shoulder and attempted restart- the Yukon was dead. Aaa attempted to battery jump the Yukon without success. We were without our Yukon for 8 weeks, being placed in random trucks that couldn't support our family size. Upstate chevy of attica was not help in the process. We did contact gm directly and received a case number 9-14907008493. The engine was replaced. The Yukon still doesn't seem to be 100%, with some slow to starts. We are asking for compensation toward another gm full size SUV. We are gm friends and family and have purchased several vehicles over the years. We'd like to trade our SUV now for a new 2025 without engine issues- but since our Yukon was gutted, that is now noted on a carfax which devalues our trade.

After the vehicle was serviced with a fuel injection cleaning and an oil change (by a gm dealership), the vehicle lost about 5 miles per gallon while driving and has not improved since. . I brought the vehicle back to the same dealership and complained. Another fuel injection cleaning was performed, but it did not help. It has been about 3 months and nothing has improved. I use 93 octane, toptier gasoline.

My family and I found ourselves stranded on the interstate when our engine failed while we were driving on I-10 at 75 mph. The connecting rod bearing got lodged in the engine, causing it to seize. This put us in an extremely dangerous situation. I believe these vehicles should be recalled. I've been in discussions with gm to buy back the vehicle, but their leadership has declined my request. They are offering to replace the engine, but I do not want this vehicle back.

Engine work valve intake lifter and camshaft repairs / oil sensor has been going haywire / rear struts keep popping off and after struts repaired bought the truck 05/2024 and had to take to repair 12/2024 and once month ever since.

See all problems of the 2018 GMC Yukon 🔎.

2018 Yukon safety of family put at risk over faulty transmission. Vehicle used to transport children many times daily. Transmission began slipping with slight lagging. Vehicle assessed by independent service center and we as customers told this is a common issue with GMC vehicles of this year. Service center was able to reproduce and confirm the issue. Total to rebuild entire transmission was $7,377. 33. Total transmission failure. Entire transmission had to be replaced at tremendous expense to our family. Transmission began slipping with slight lagging. Engine rpm's would increase with no additional power or speed.

I bought my 2022 Yukon xl on [xxx]. On Friday [xxx], only a few weeks after having my car in the shop (at the dealer) for running rough, it started to make an odd high-pitched noise and running very rough at higher speeds. I immediately called the dealer and asked how quickly I could bring the car in to be checked. They said they had no availability for over 10 days, and offered me an appointment for then. By the next morning, it seemed to be running better and I didn't have to drive much that day so I hoped it would make it until the appointment. That Sunday [xxx], my husband and I drove the car to a sporting event with our children and it seemed to be ok. On our way home, however, just after crossing a long causeway over the bay, the car's motor just stopped working in the middle of driving on [xxx] in miami. We were in the left lane and had to try to change multiple lanes while coasting only, and were only able to get off the traffic lanes because there happened to be a side street that came up quickly enough to turn onto before the car came to a stop. It was completely unexpected and without warning, and had we been on the interstate or even the causeway we had just come off of, it could've easily caused an accident with my whole family in the car. Once stopped, it wouldn't crank or even try to turn over, no matter what we tried. It took 2 tow trucks because we couldn't even change/move gears enough to put it in neutral, so couldn't use the flat bed that arrived first. We were stuck for hours in a less than desirable area of town. The dealer took a week to look the car over, then said the engine had seized up and would need to be replaced. The engine was on back order and it took over 6 weeks for the replacement. After replacement, 2 separate issues arose over the following 2 weeks, each the result of a component not being properly tightened during the engine replacement by dealer service technicians. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On 9/23/2024, I was driving my 2021 GMC Yukon denali down the road, when the engine seemed to lose power, and the accelerator no longer worked. There were no indications of any errors or alarms on the dash, and all functions on the interior of the cabin showed as normal. The vehicle switched into neutral, and the engine shut off and I was unable to control or accelerate. This is a extremely serious situation and extremely dangerous in terms of safety.

Gas line leak.

While driving at 60 mpg on a major highway vehicle began decelerating itself and eventually stalled. Driver was able to pull to the side of the road in a turning lane. Private mechanic found code that fuel pump control module failed. After the failure vehicle could not be put into neutral and had to be towed back to residence by a tow truck. Check engine warning light did not appear until vehicle stalled.

There are several incidents reported regarding ongoing assessment with GMC interplay activity I have noticed this have become a dangerous drive ability inside acceleration controls governor sets whiling driving engine play transmission shifts this have gone beyond everyday practices during drive times this have been very noticeable during anyone time rpm gauges constantly disrupted radio functions remote controls are at play many problems are being serious illegal assessed during drive compulsive fuel guagement. I have been placed at dangerous risk by interplay noticability. Now slight tick sounds after full services sparkplug and wire as tuneup oil changes fuel services and coolant same recurring problems continued after serviced alignment services. Controls are very strong.

Numerous difficulties have arisen during the process of driving on multiple occasions. The tablet/radio continues to reset, and the traction control sensor light continues to illuminate. I have communicated with the GMC service center on several occasions, and each time, no issues were found. During an oil change at another dealership, no service recommendations were mentioned, yet a list of offset services was listed on mopar. As I continued to drive, I noticed that the speed controls were limiting speeds, necessitating self-serviced accelerated drives. This has been ongoing for some time while driving and has required ongoing fuel adjustments. I have received tune-up services, coolant services, fuel services, wheel balancing, and several alignments, which have recently caused significant inconvenience. Routine maintenance has been performed, and the rpm gauge remains constant during operation. Make a unsafe drive.

1. Fuel pump control mod 2. My car gave me only a second warning before it shut down entirely. I was somehow able to get to the side of the road. No car going to the car 3. It was replaced at an independent service station. They called GMC dealership for assistance on diagnosis. Dealership said this is happening 4. No warning lights at all. No car trouble at all. Car is fully up to date on maintenance this is only a 2021 car with such low mileage you expect to a car to run properly if well maintained. I called the GMC dealership and spoke to the service manager and he just said that these things happen. Cars are complicated these days. I found that unacceptable since I could have been killed if someone was directly behind me and I could not get to safety. I spent $416 to get towed from a NJ towing company since aaa is not allowed to tow me on the garden state parkway. . I spent $165 to get to philadelphia to catch my flight since I did not have a car. I hope that this major shutdown of this car can be addressed and the answer is not just that cars are complicated these days. Thank you.

Leaking fuel from the top of the tank when I start vehicle and after 5-10 minutes it stops this the second time this have happened.

Pinhole fuel leak located in the bend radius of a plastic, quick disconnect coupling, of a pressurized fuel line, just forward of the fuel tank. Being a pressurized line, the leak is continuous, whether the vehicle is on, or off. Due to the location of the leak, fuel is sprayed upwards onto other shielded lines and components, representing a safety/fire hazard.

Driving at 70 mph, the vehicle shifted into neutral without warning. When attempting to place the vehicle back into drive, the vehicle dashboard siad "vehicle condition not met" . I slowed the car and pulled over. It shifted into park but now will not start and will not go into neutral for towing.

Twice in a five day span vehicle stalled out, acting like it is not getting fuel. Each time it took several minutes of trying to restart and getting below fuel tank to give it a couple knocks to get it to start. Both times there was atleast a half tank of gas. Each time the car was running well when it suddenly slowed down on its own, the first time I was on a busy street resulting in the need for a tow and I had my grand baby with me. The second time it was an isolated road and surprisingly I had cell service to call for assistance. The tow truck driver told me he thought it was the fuel pump. I looked up my VIN but it isn’t listed as one of the affected vehicles in the GMC Yukon recall, however it certainly seems like it is. I had no warning of any type with each incident, the car simply acted as if it ran out of gas. I have an appointment with a local garage. Additionally when this happens the vehicle does not let me shut it off. The engine isn’t running but I can’t power down the electronics system.

I am writing to express my concerns and frustrations regarding the recurring issues with my vehicle despite multiple service appointments at classic GMC arlington. Despite numerous attempts to address these problems, I continue to experience issues with continuity of service and performance fueling system and coolant system problems (twice in six months) stabilizer link light illumination during startup rpm acceleration while slowing down or stopping ticking sound from the engine. Each time I bring my vehicle in for service, I am told that there are no issues with the performance, idle, or spark plugs, despite having recently received a full service tune-up. I suspect that there may be intentional damage or tampering with my vehicle, which is causing these persistent problems. I have not had any prior issues or service lights illuminated before, and there were no incidents reported by the previous owners. I believe there may be fraudulent activity involving the manufacturer and service providers. Schedule a thorough inspection and diagnosis to address these recurring issues.

I owns a 2021 GMC Yukon. My wife was driving approximately 70 mph when the vehicle suddenly stalled. The vehicle would not restart. The vehicle was not able to go into neutral. The vehicle was towed to the dealership who diagnosed that the fuel pump module failed and needed to be replaced. The vehicle is getting repaired but not covered under warranty or by recall. The manufacturer was made aware of the failure. The approximate failure mileage was 14000.

Vehicle shuts off and goes into neutral at highway speeds I am reaching out because it has happened to me three times in a seven month old vehicle and also five family members with Yukon tahoe, escalade same issue is very very dangerous please, I beg you take this very seriously and contact me so I could verify to you the other owners that I’ve had the same issue, but have not went far enough to make a complaint. I will prove it to you with other owners, same problem, where the vehicle just shuts off.

I was driving on a highway at speeds of 65 mph and the engine stalled on the left lane. I almost got struck by a tracker trailer. The dealer supposedly fixed the issue and a few months went by and the vehicle died again engine failure in middle of the highway.