Fuel injectors: 2022 GMC Denali Limited 6.2 L V-8

Brought my 2022 limited sierra denali 6.2l with 1500 miles in 2 weeks ago. Same issue with bad injectors and national back order. My boss had a 2022 limited sierra at4 with 6.2 and his motor blew. The dealer did receive his motor. So I guess I am screwed

Had my truck a week. 2022 limited SLT crew cab standard box 6.2L. I noticed a misfire the DAY after I got it home. In the shop with 300 miles. Been two months and doesn’t look promising anytime soon. I get the current times but this is not exceptable.

Takes alot of the fun out of buying a new 65k truck !!!

At this point gm can buy back my truck and I’ll drive the 2004 farm truck. What good is all this high tech when it’s so completely unreliable?

I’d like to see the data logs.i bet this truck was like this at the factory and they sent it along anyway… it runs, next.

My boss did get a new engine. I still have no answer for my injectors. I am have been calling gm directly and they can’t even help.

I’m in the same boat, bigmike. At this point I’d like gm to buy back the truck. No update on injectors and no ETA on when they will arrive. CRAZY

Anyone had any updates? 2022 Trail boss with the 6.2 and bad injectors. Been in the shop since June 3rd with no updates yet

Thanks in Advance

I was just told my brand new 22’ Yukon XL Denali needs an new fuel injector? Are they not available at all? Shouldn’t they all be replaced if defective? What’s up with this? Thank you.

I am still waiting, I have been on phone with different management and even emailed ceo. Supposed to get info from executive team by tomorrow on date of injector shipping out. I was told twice that they would be in this month, never happened. Also if i took a rental from them they wouldn’t refund me lease payments. They may have to buy me out soon only issue I have is had my trucker completely wrapped with xlpe paint protection film and will lose that money. I never owned a gm product and may never after this issue.

Airguard – did you ever get the injectors? Was the issue ever resolved?

BigMike: Please let me know what happens. Dealer just told me they are waiting for gm to respond to their request for the injector.

I am still waiting for a ship date on part.

Are they replaving all injectors or just one? Also, did you hear anything about the lack of a fuel filter causing the injector problems?

Any update from anyone on getting their fuel injectors? They dropped off a loaner car for me but no news on getting my truck back on the road. Does anyone know anybody at GM I could call to get any information? I haven’t asked for a refund or replacement vehicle yet but plan to do so at the end of next week.

Big Mike, please post the last 8 digits of your VIN and I’ll see if there is any updates. The last time I looked it was December promise date for these injectors

Actually just picked up truck, they sent out injector overnight and fixed last Friday. Everyone needs just go up the chain with management and don’t stop till you get your parts.

Does anybody have any updates/more insight into this problem? I just got a 2022 Sierra Denali 6.2L in September, it was shuddering from day one. Had to bring it to the dealer twice because they couldn’t diagnose the problem, then eventually a month in I got a check engine light. Dealer says it’s a failed fuel injector, and truck is sitting at the shop waiting for parts. Has having the injector replaced solved all problems for you guys? Very concerning.

For my 22 Yukon XL Denali in NY I waited about 3 weeks for one fuel injector. Dealer brought it back by flatbed and they gave me a loaner. All seems okay now but you never know – the other injectors are the same as the bad ones. Given all these issues they should just replace all injectors from a different source before they go bad. So far no issues after one injector replaced,

• This reply was modified 2 years, 6 months ago by jeb471.

I have a 2023 Tahoe Rst. With 6.3l engine . In shop for weeks with #3 injector malfunction. No replacement available with no delivery date.
Paid 67k only 1000 miles. Very poor Schumacher in North Palm Beach.

The Best thing you can do is call GMC Customer Service ( just google it) and make a complaint. It’ll speed the process up a little, but you can get compensated for your downtime. They made a month’s payment and gave me 50,000 points on GMC Rewards.

Somebody give their VIN and I’ll be glad to check and get a update for you…

I have a brand-new 23′ Denali with the 6.2 and it hasn’t ran right since the day i picked it up. intermentily rough idles, slow acceleration with hesitation, shudder on hill climbs, but never throws a code or turns ck engine light on? anyone else with a similar experience?

If somebody would give the last of your VIN I’d be glad to check for you..

Gerry, last 8 please..

Thank you!!!

NG507153

• This reply was modified 2 years, 2 months ago by Gemassie.

PARTS MAN 1 – I dont have the GMC 6.2 but I do have the 22′ Trail Boss 5.3 and I too have been without my truck for weeks waiting on a fuel injector…can you check my VIN for me please – NG663838

Anyone have any news on arrival date of fuel injector? Bought new 23 Yukon 5.3 liter ,had it 13 days when fuel injector went bad the car has 500 miles on it. Cars been at dealership for six weeks now ,dealer says he has no idea when part will come in. General Motors blames it on there supplier.

@2Dmaxn72 it took 64 days for my 2 fuel injectors to be delivered and installed. This was in Ontario, Canada.

I went all the way to executive level and finally got my injector. That was started in June and took till mid September. I just email and call them now with every issue.

Why wouldn’t GMC put the shifter on the console like the Sierra’s instead of that foolish push button

@Bigmike5497 How does one go about getting to the “executive level” to get their injectors?? Or who do you email?

[email protected]

Soverall, your injectors are in transit to the Lansing parts warehouse and should start shipping. Next update is March 6th..

PARTS MAN 1 – I dont have the GMC 6.2 but I do have the 22′ RST 5.3 and I have been without my truck for over a month waiting on a fuel injector…can you check my VIN please – NZ597916

Had anyone had luck calling the BBB and getting GM to buy back their truck, I’ve been out of a truck for 4weeks and need it for work? Lemon law states 30 days in the shop qualifies as a lemon.

Iv got a 22 silverado trailboss LT 5.3L with 9300km on it having the same issue my truck left me stranded on the side of the hwy on the coldest day of the year with a blown fuel injector on #8 cylinder the stealer$hit doesn’t know when they will get an injector gm canada doesn’t seem to give a rats @ss my truck has been sitting at the stealer$hit since February 2nd and now with all the cold -40 weather we have gotten in northern Alberta my battery is dead has any one gotten their injectors yet? I see people have been waiting since may of 22 this to me is horse $hit when the factorys are still producing new trucks that obviously have injectors in them why can we get ours in a timely fashion.

@Parts Man 1 – you have been THE ONLY person to give me an ounce of information! THANK YOU!! The dealership wont update me and even calling GM about ANY updates to my case hasnt worked. You sir should start your own forum as much as you help people with parts questions! Also, do you perhaps have a new update for me? 🙂

@Parts Man 1 I have the same issue as everyone else in this forum. Last 8 of VIN NZ617296 Any update would be appreciated.

@Parts Man 1, how are you checking the status of the fuel injectors? Can you check mine as well?

Sorry I didnt back however GM parts is suppose to have arriving but I dont have a promise date. There is suppose to be a update tomorrow… I’ll keep you posted

General Motors shipped my fuel injector on March 3 dealer got fix March 6, 2023 Yukon was down for almost seven weeks

Gm has the parts arriving to the Lansing warehouse. The supply chain is working on a ETA. The next date is March 17th.

zxrj1 As well as the transmission struggles to figure out what gear to be in especially if you make a turn on an incline or coming to a stop lots of clunking…terrible for an $80k truck!!

GM has received stock and should begin shipping however they did not get enough injectors to fill all the orders..

Parts Man1

Is it true the injectors are not the same for each motor regardless if the year and motor are the same?

Also…did the check engine light come on for everyone on here that have had injector problems?

I never had check engine light. Just misfire that told me something was not right. Ended up being number 3 cylinder injector. First injector that came in was wrong. Not sure how that happened with everything ordered off of vin.? Second injector came in 4 months later. I was told there is three part numbers for the injectors.

Mooretrucks, that is correct which is why I ask for a VIN..

Wachs, 3 injectors depending VIN.

I don’t understand the reason for the 3 injectors. Seems I remember someone talking about the injectors control flow rates over the ecm.? Do they have three different flow rates or what is the difference in injectors ?

have a 22′ ZR2, got a stabiltrack malfunction and check engine light on, shop GMC says its fuel injectors. has been at ship for 2 weeks, they telling me it could be 2 weeks or 2 months until the get the parts. only 3400 miles on it, you’d think with a 85K dollar truck they would be in some type of rush to fix it, this is after I just had to have my other GM truck bought back on lemon law for transmission issues!!! last Gm vehicle I’ll be buying.

parts man, please check on injector for VIN NZ604182
Thanks

For newcomers to this issue – I did not get a check engine light until around 5500 km (3,400 mi) on the truck. It was shuddering and misfiring from day one but the shop couldn’t figure out what was wrong until I got the check engine light. I knew there had to be something wrong though. They kept misdiagnosing it as wheel balancing issues, drivetrain balancing issues, torque converter etc… Finally when the check engine light came on after a huge shuddering attack while driving (OBD II code was P0622 which I believe is Injector 8 fail to close in time), they were able to determine that it was the injector. I was told that 2 had to be replaced along with some piping and gaskets and such. All parts took 64 days to get in Kingston, Ontario Canada. Best of luck to everyone.

Parts Man 1 Are you still with us? Really would like if you can tell me which of the 3 injectors my 23′ Denali w/ 6.2 has…vin#PZ122459
Thanks!

Mooretrucks, I’ll take a look on Monday..

mooretrucks, I ran your VIN and your truck takes part number 12732623 which is on backer order however GM should received stock and is filling back orders.

@Clang15, is your truck a 2022?

Thanks guys
Pick up my 23 AT4 with the 6.2 and fully expect to have it skip as I leave the lot.

Parts Man, can you check out my vin

NG637966

Fuel injector issues happened to my 22 Sierra 5.3 and dealership and GMC both have no idea of a lead time.

Thanks sir,

I’ll look tomorrow..

kboogie, the part number for your truck is 12732622 and it is currently on back order. GM is receiving ship but not enough to fill all the back orders. There isnt a ETA for new order but the next update is 4/17 and I’ll try and remember to get the next update. please make sure your dealer has a spac case on your order..

The 2022 GMC Denali Limited is equipped with a 6.2-liter V8 engine that comes with direct fuel injection. Fuel injectors are a key component of the engine’s fuel delivery system, as they are responsible for spraying the fuel into the engine’s combustion chamber at the precise moment it is needed for combustion.

If your vehicle is experiencing issues with the fuel injectors, it may result in a range of symptoms, such as rough idling, reduced power and acceleration, misfires, or even stalling. In some cases, the check engine light may also illuminate to indicate a fault in the fuel injection system.
https://intercarex.by/

Parts Man, can you check out my vin PR146625

2023 Tahoe with less than 1800 miles on it. Located in Canada. Dealership cannot give me any information other than it could be upwards of a month or better waiting for parts.

newtsie, your injector is part number 12732622 and its on back order. GM has been receiving shipments but not enough to fill all the orders . Please make sure your dealer has a spac case on your order.

Thanks Parts Man 1 for the reply. I guess I was one of the fortunate ones! Tahoe went down on April 10th and I picked it up yesterday.

My truck went in yesterday for the exact same issue, they stated it needed 1 injector, the estimated fix date is 2 days. So I guess they have the stock now

Dealing with same issue with no ETA for parts to make the repair. Has anyone had trouble getting reimbursement for rental? I was told to just rent a car until mine was fixed and they’d reimburse me once I had a final total. I’m nervous about a full reimbursement not occurring.

ALB2, give me the last 8 of your VIN and I’ll take look

NR347490 thank you

ALB, your part number 12732623 doesnt have a firm ETA. There is a components delay.. Suppose to be a update on Thursday, I’ll try and remember to check for you..

Thank you