GM is currently facing a major quality control issue related to the naturally aspirated 6.2L V8 L87 gasoline engine, a powerplant found throughout the Cadillac, Chevrolet, and GMC product portfolio, including the Chevy Silverado, GMC Yukon, and Cadillac Escalade, among others. Reports of engine failures have surged, leaving many owners stranded with disabled vehicles and no clear timeline for repairs. The problem has become so severe that the National Highway Traffic Safety Administration (NHTSA) has launched an investigation after receiving over a thousand complaints from affected owners, with 877,710 vehicles now under the microscope.
The failures are rooted primarily in bearing failures and collapsed lifters, both of which can render the engine completely inoperable. According to a report from The Drive, while many of the affected vehicles are still under warranty, GM’s inability to supply enough replacement engines has left owners without much recourse. Not only that, but dealers have struggled to meet repair demands as GM attempts to balance new vehicle production with replacement parts, creating an extended repair backlog.
As highlighted by The Drive, the issue is particularly impactful for business owners and fleet operators, who rely heavily on their vehicles for daily operations. As mileage quickly accumulates, often exceeding warranty limits, affected owners are sometimes forced to spend upwards of $10,000 for a new engine, with no guarantee of when repairs will be completed.
One livery service owner states that as soon as her 2023 Cadillac Escalade began exhibiting signs of lifter failure, she acted immediately to quickly source a new engine. Unfortunately, her efforts were in vain, as although she sought to address the issue weeks before the Escalade’s L87 was rendered inoperable, a replacement engine simply could not be found. Now, her vehicle has now been out of commission for weeks, costing her an estimated $30,000 in lost revenue, all with no clear resolution from GM.
GM dealerships are also facing the impact, with some resorting to hoarding replacement engines for high-priority customers, leaving others to fend for themselves. Social media posts indicate that dealers are now attempting in-house rebuilds as well, despite GM’s recommendation to avoid such practices.
For some customers, an entirely new vehicle is the only solution to keep their businesses operational, adding yet another financial burden to the mix. It’s unclear at this time when the NHTSA’s investigation may conclude.
Comments
So what happened? The LS engines were VERY reliable. What happened with these newer engines? Design flaws? Manufacturing flaws? Done on purpose so gm can say, “Aw shucks, guess we just can’t build V8s anymore”?
I suspect quality control issues coupled with design flaws. Very hard to pinpoint the exact number affected……..
I think the EPA’s stringent requirements are also to blame.
Whatever, I will come back by 2027 or 2028 to see the situation. This generation of engines will end production by that time.
Hello, Thank You for allowing me to vent to you, I have a 2024 Chev. Tahoe. The engine is one issue for many people, but it is another issue as my Tahoe will not get into gear. I can start up the vehicle, but the selector shifter on the dash will not transfer from the part position into any other positions. It is locked into Park. At sometime, it has taken me 15 times before the shifter will move to drive or reverse. Chev. has some major issues.
No design flaw. This has been reported. A large quantity of 2023-2024 6.2’s (not all 6.2’s and no 5.3’s) had their lifter bores drilled oversized from the factory. Likely one of the tooling heads was out of spec, and wasn’t caught for a whole year. Guaranteed failure between 10-60K. GM can’t keep up with replacing 20-30% of 2 years production and new production at the same time. The 6.2 demand just keeps increasing as well.
But hey, still better than toyotas 3.5 issue 😂😂😂 it is bizarre, cause the 2019-2022 6.2’s have been bulletproof.
2019-2022’s would drink oil, 1qt for 600-700 miles which GM claims is “normal”. Though I guess they could qualify as solid otherwise provided you don’t run it out of oil.
I have a 21 Sierra Denali, I use about a quart of synthetic oil over 5k. I have 75k on the truck. I have done a ton of research, the lifter problems for the 2019-2021 motors are due to the dynamic fuel management system. A hack is to drive in L9 it keeps the truck in v8 all the time. No issues for me and I’m an aggressive driver.
Not caught for a whole year means there was ZERO quality control.
No checking the bores with gauges as the blocks rolled by? No machinist to pull out their mic and check randomly or even before the start of a shift?
This will rank among the costliest cost-savings ever done.
I have no doubt Toyota will fix 3.5 issue sooner than GM will fix their 6.2 issues, and Toyota will treat their customers much better than GM will treat their customers.
Toyota is still struggling to get engines out as well, cause unlike GM who’s having to replace 20% production for a year, Toyota has to replace 100% production. If this was TMA and not GMA, you’d probably still get articles on it. This really is the only site I’ve seen that GM is behind on replacements. Other sites I still see lawsuits of the 07-09 engine oil consumption, but no 6.2 failures. Theyll probably see more customers chock it up to bad dealerships than the Brand. My experience with Nissans/toyotas, is sometimes s a dealer will say unavailable, but you can get it strait from the OEM website 🤦♂️.
GM doesn’t care. My wife has a 2023 High Country Suburban, with the 6.2 engine out with not a replacement in sight. At least it’s still under warranty. I just bought the extended warranty for my GMC Denali half ton since I don’t trust the 6.2 engine anymore. GM has turned into an insurance company rather than making dependable vehicles. Here’s the kicker, they don’t give you anything to drive while they make you wait on an engine. GM needs to get back to building dependable cars and trucks.
Its neither a QC issue nor a design flaw. Since 2008 all vehicle manufacturers accelerated their engineered obsolescence programs. The forced mpg requirements provided them cover to start building completely disposible autos. Just another example of unintended consequences of govt mandates. Its sickening really when a consumer product will not last long enough payout the loan. None of this is happenstance.
another conspiracy theorist and probably a political cult follower. GM cars have been improving dependabilty for decades. GM cars do not have increasing acts by engineers to make them fail more and more. GMs reliability use to be crap decades ago, and thanks to Japanese competition they had to shape up
What model years does this affect?
I know that 2015 to 2018 was the AFM issue but I have the DFM issue on my 2019 which costed over 12K. And GM is still pumping them out in the 2025 models
2015-2018 engines have had a reputation for reliability. Only the occasional lemon. It’s the 2023-2024 6.2’s that are affected.
Bean counters sourcing cheaper components
It’s the Active Fuel Management crap. AFM or DFM. That cylinder deactivation bs. GM is replacing the engines with the same flawed engine instead of removing AFM all together. GM is f*$#king up big time and not taking accountability for it.
You must think that Hondas VTEC is unreliable as well, or must be perplexed why the #1 engine used in swaps is the LS, even though they all have AFM these days. Blizzare that these “unreliable engines” Get pulled out of 200K mile rustheaps, and dropped into race vehicles by the thousands.
Swaps get all the crap deleted.
If you have issues in stock vehicle taking it to the dealer will only get the symptom repaired.
Find an independent mechanic that can eliminate the problem or get a junkyard engine put in and move on because you will probably have transmission problems soon.
You totally missing the point. Swaps come out of crap heap cars. If these engines were junk, then then there’d be no crap heap cars full of these. Obviously, there’s a $#&! Ton of rusted out old trucks and SUV’s with working AFM engines. Yes, sometimes when an engine is swapped they overhaul the engine and delete AFM, but not always, and not the point. Point is an AFM engine outlasts the body in 90%+ of vehicles. Ecoboost, Hemis and Japanese cars can’t claim that.
You got that right my 2019 Tahoe SSV is heading for its 3rd Transmission. Currently at 160,000. It’s not going to a Stealership this time for their Encore! Who the hell fixes a major issue with the same protocol that was used on the assembly line? Expect different results GM? Much???
Mary really needs to apply for The Speaker Of The House position that will soon be available. Her vast experience with chaining up Dealers giving them an arsenal of Alternative Facts to stick up the ass of unsuspecting Consumers will surely float her resume to the top.
The bubble is about to burst on these 6l80 transmissions but you best believe every last Big Wig at GM is looking forward to their impending Bankruptcy where The Boys Club will be in the driver seat filling their coffers laughing all the way to the bank!
They had me hooked with this SSV being well positioned for the number one slot of All Time Thrill Wagons for me…. I was ready to say “I Do”, however, I DEMAND RELIABILITY, therefore I can assure you my lips would not touch another GM product even with an iron clad prenup.
When doing a swap you have to do a tune to even allow it to start so I Am doubting anybody is going to leave AFM active.
Very sad and embarrassing, GM used to know how to build good quality engines and transmissions. Now, I’m not sure. GM needs new leadership.
Welcome to the world of Mary Buick Envision Made in China-Barra who is more profit-oriented than consumer-oriented.
And Trump thinks Europe should buy more American cars. Aint gonna happen with GM’s quality. Going back in time, my 2003 Suburban went an easy 230k mikes. Never had to go to the dealership. Only real issue was the transfer case. I sold it to a guy that changed the odometer to 60k and he sold it in Chicago area as a one owner. He just bought a new dash display.
An SOS should be issued for shady dealers like that.
What happened? Mary became CEO.
Planned obsolescence. The auto industry has applied planned obsolescence to a point where buying a new car is a huge liability.
No excuses. GM executives should be fired.
Should have kept the 3.0 Duramax in the escalade.
Now every Escalade will be a junkmobile again.
We will see. Already a couple have failed….
The only engine with a similar problem is the V35A, which is also having problems in MY24s and MY25s….. Don’t use the excuse that they recalled all of them, since some recall motors have failed and some are on their third engine.
This story has been REGURGITATED MULTIPLE times across so many articles, we ALREADY KNOW that sourcing engines is an issue. NO NEED TO REPEAT IT.
Both engines are duds.
“as GM attempts to balance new vehicle production with replacement parts”
Baloney. GM needs to pause 6.2 truck production and get those motors to folks needing them!
Right now you have 877,710 customers who may never buy another GM product. Don’t turn them into 877,710 customers who WON’T buy another GM product.
Agreed.
The problem is people will still keep buying them, and I believe that there will be a recall issued soon…..or else there would be a lawsuit
Another issue is that People in the Middle East will STILL buy them regardless.
I also forgot to add most of those 877k customers EITHER will wait for the 3.0 duramax, or will downgrade to the 5.3 V8.
Or some will skip the 6.2 and go to the L8T. That does not have much problems aside from lemons what I know…
Wonder how many 6.2 owners will be stuck with them, because dealers give very lowball trade offers or don’t want them at all?
Too early to say.
I think give 6 months to a 10 months, we will see.
The Tundra debacle is a very bad example….Many lost tremendous value due to the engine problem they had. I suspect for the 6.2 it might be the case as well.
Then again, you also will have 6.2s that have racked up high miles without issues….
Very sticky situation really.
dealers low-ball regardless, with the L87 it will be more like rape.
My fried just purchased a 2500 with the L8T. 1800 miles and a thrown rod. Quality control seems to be a lost art.
might be a dollar short and a dime late, already. i personally, would/will be very hesitant to buy a GM at this time.
Same. I will prefer one made before MY20…
Agree 100%! I had to wait months for a replacement transmission for my new C8 while GM was shipping production vehicles.
Run the engine plant overtime. They should be able to crank out about 2000 a day. Same engine with correct tooling and/or bearings.
Now that GMA has acknowledged this as a real problem, will the typical gaslighters continue to say the problem is non-existent or somehow the fault of the owners…?
Engines and transmissions used to be a core strength of this company. Have fuel economy rules and value engineering on steroids combined forces for this disaster?
The last question you may answer yourself. You are ABSOLUTELY RIGHT about your final point.
It is a quality control issue, and it is hard to know the exact nos affected.
Downvoting will not change my mind sir…
absolutely. american car makers have forgot how to build an engine, period.
Not so much they forgot to build engines, more so quality issues pushed by excessive complex designs.
All these complex designs have been pushed by the EPA, so that of course negatively affects reliability.
The first gen AFM issues were almost always oil change interval related. Not necessarily the owners fault because the oil life monitor would let it happen.
This is something new and very un-Chevy like for engine reliability.
Oil is cheap. Use a quality filter made for synthetic oil made with synthetic filter media. Oil change joints give you a filter that you can get on Rock Auto for $2. At 35 to 40% on the oil life monitor gives me 4500 to 5500 miles.
I’ve heard about multiple 6.2 L engine failures from my local GM service department.
Is there a reason that the 5.3 L bearings are not failing?
The 6.2 lifter bores for 2022-2023 were too big, so likely the line finishing the 6.2 blocks had a tooling head out of spec. The 5.3 would of been on a similar, but different line.
5.3s had an engine contamination problem which I do not hear too much of…there was a fix for that. Outside of lifter issues, only one or few engine failures…..
Most 5.3s do not have problems.
Does your service department know how many 6.2s have blown up overall?
I have seen an the same failures in the L84 5.3L. For whatever reason, the 5.3L fails at a slightly reduced rate than the 6.2L. There is a very high probability if you have one of these engines that it will not make it to or past 100,000 miles. Cylinder deactivation components are to blame along with poor materials in both engines. The spring loaded lifters used for the cylinder deactivation system get tired and collapse which takes out the cam. If the owner keeps driving, they can cause more extensive engine damage. This is a very bad design. GM should be ashamed. They will loose many customers for life.
In the 6.2 I can agree. How many L84 5.3s you saw?
I have heard of ONLY ONE such failure, and the issues were for contaminated blocks which was recalled (or a TSB issued).
EPA is forcing these terrible designs…so…
Early oil changes in the 5.3 are key….
Other manufacturers are NOT any better….so with Bad QC and issues across the board, everyone is pumping out bad products.
I have seen a ton more 6.2L’s fail to be sure. But the 5.3L is prone to the same failure . Just the 5.3L engines of people in my family and friends alone we have had 4 fail. All with the same lifter failure problem. That is to say nothing of the dozens of customer 5.3L engines that we have seen fail.
GM interested only in the bottom line as this can be seen in the wait time for new 6.2’s but the production line keeps spitting them out. Gm is interested only in one’s pocketbook, make no doubt.
That might change IF AND WHEN they decide on a recall. Otherwise a lawsuit will be needed.
I may as well add that this will be an EXPENSIVE RECALL for such a serious affair.
But IT NEEDS TO BE DONE.
That is 200% wrong. A failed AFM lifter just bounced up and down and doesn’t chew cams. Hemis chewed cams because their cams were way more aggressive and when the oil got too thin it was like the cam was running dry. Chevys AFM issues was due to cheap oil gumming up the lifters in the LC9 (2009-2013) and the symptom was oil consumption when an intake lifter would stick and oil would get sucked up into the cylinders, then out the exhaust. Sometimes simply switching to a quality detergent oil would clean them right up.
The 2015+ engines have a variable displacement pump to increase oil supply to the lifters and screen filters dedicated to just the lifters. This current issue is AFM related despite being lifter related. A solid Tappet would fail with wrong bore sizes
One part of the problem is that GM doesn’t offer the 5.3 in certain trim lines anymore (looking at you AT4 and others). I completely understand that the 3.0 is a perfectly reasonable alternative, but there are some people that just simply *do not want* a diesel, so the 6.2 ends up being the only other choice. The number of 6.2s is artificially higher than it would be otherwise as a result.
The thing is, while the 6.2s has had failures, the LZ70 also has had its share of early engine failures.
I think one thing that might be an issue may be short tripping both these engines- that can be a HUGE problem.
As I said however, they NEED TO FIX THIS ISSUE.
Well their *do not want a diesel* stubborness has consequences. They can enjoy replacing engines and losing big $$$ on tradein and when warranty is up.
I would say that 90% of 6.2L engines scheduled for new car production be sent to replacement. They need to get in front of this problem.
I am in the process of deciding what GMC or Chevrolet full-size vehicle to order. I don’t want the 6.2 because of premium fuel and poor fuel economy. Now because of this issue.
Either you can try the 5.3 L84, or the 3.0 LZ70.
The Diesel is valid ONLY IF you are towing long distances….
The 2.7 TB is another option. If fuel cost not a consideration, the L8T is another alternative.
two point seven not worth the conversation.
Then the other three may be valid.
Or a GMT800 6.0.
I have a 2022 Tahoe Premier. I ordered the 5.3 and cat-back exhaust that gives you a nice sound when accelerating and a little more horsepower and torque. It is very fast and runs on regular gas. The funny part is if you look at towing specs, the 5.3 can tow more than the 6.2.
Tahoe is chassis regulated now ppwertrain regulated when it comes to towing. Back in 2KXX generation, you could get a 5.3 to tow 12000 lbs when properly configured. The 6.2 max tow does 13500 when properly configured. A Tahoe doesn’t break 9000, buts that’s because it has an IRS and bigger butt.
this is sad to see. before you could legitimately call someone ignorant for saying american cars arent reliable, specifically gm. now they break down constanly (granted every other company is the same), the difference is that companies like toyota and honda were known for reliability whereas reliability with gm is more of a “iykyk” situation. with that said jdm consumers are under a confirmation bias that “my honda or my toyota was reliable so even though they have issues now they were known for reliability back then so its not that bad”. even when im on youtube i see tow truck drivers 8/10 towing a brand new gm. this isnt a good look. i wanted to buy a gm at some point but atp i’ll stick with my 02 crv. maybe in the future i’ll buy a older gm with an LS
Youtube can exaggerate or misrepresent things, so I would not consider it fully reliable. Same with forums. That said, I DO NOT DENY the issue is serious.
Most towed are for the fuel pump module deaths, some for bearing failures.
Regardless, they NEED TO FIX this problem.
Older GM LS engines are much better, no AFM, 250-400K with regular oil changes are common. I quit GM after buying them for over 50 yrs. Can’t believe I went to Chrysler/Ram, but I did and very happy.
Careful, RAM had MDS as well. As long as you do not idle them excessively , they run fine.
I hear more issues with RAM trucks in Qatar for some reason, I do not know why…they are decent as long as they are maintained well.
We are a former GM family. Their quality and reliability drove us to Honda. I do have a 2024 C8 Z06. So far so good. This engine issue is a really bad customer issue. Many people will leave GM products.
Too early to say…
I will say people leave GMC/Chevrolet at about roughly an equal rate to RAM and Ford customers who have had non stop issues with their respective trucks.
Nowadays even Toyota has problems with their V35A. MY24s are still failing….
All engines are suspect now. The only ones that are not include the 6,6L L8T gas.
What is it that makes the 6.6 so much more reliable? Probably gets same gas mileage as the 6.6. We have a 2024 High Country 1500 with the 6.2. 11,000 miles on it and running strong. Any recommendations? I love this truck so I hope they figure this out and recall whatever it is! Thanks!
LOL, what? Honda is still living off their 90s and early 2000s quality reputation. They haven’t been much reliable than industry average for a long time. 2024 was actually a great year for them and they are still ranked behind Ford.
I left them also, but still had to have a C8.
People talk about poor maintenance being an issue but Toyota has 10,000 mile oil change recommendation while gm has 5,000. Imagine if gm was 10,000 . The streets would be lined with junk gms.
I agree
Also I keep seeing oil change analysis that say you could have gone longer on that 10,000 mile oil change. But I have also seen inside some of these 10,000 mile oil change engines and they are FULL OF SLUDGE….
If you only keep your vehicle for 3 or 4 years ok but if you I intend to have it for lots of miles change the oil more often.
???? GM is 7500 per oil change, and actually much more is possible, but their computers won’t allow for more than 7500 on their oil life monitor for insurance. FYI, Mobile 1 certified their 1 year/20K ultra synthetic on a 5.3. on multiple occasions I have just hit reset and waited for the next oil life monitor to go off. Granted I run the 20K ultra in my DD and farm truck. Both have over 200K. My DD is a 3.6 traverse and runs a quart low once you approach 15000 miles. My farm truck LS burns maybe half a quart at most per oil change, and on both the oil comes out sludge free and still a little clear. There’s a little ash, but nowhere near what my diesels have in their oil.
I change their oil of my 2018 Dodge Charger (V6/awd) and my 2022 Chrysler 300S (5.7L V8) when the oil life is around 55%, even if the milage is below 5,000 miles.
This wouldn’t have happened if they kept the diesel.
Another good reason to go all electric!
Lol, thanks Mary, er “Greg”.
Not!
That might be the plan, they have in mind.
i have a 2025 Silverado ZR2 with the 6.2 engine been waiting 2 months for my new engine . my engine blew at 3000 km . I think GM should halt production and send new engines to the customers that are in need of them. That is the honorable thing to do if there is such a thing like honor anymore.
What if these vehicles on the assembly line have the same issues? I wouldn’t want one of these…….
2nd half of 2024 and 2025YM have engines that have verified their lifter bores are the correct size. There’s a small chance you’ll get a lemon, but your more likely to have issues with a Ford or the new Ram turbo.
Should have gotten the ZR2 with the 3.0 Duramax.
Need to build the 327 or 283 or the 350!
“if it ain’t broke, don’t fix it ” seems to have only worked in the past. I’ve retired 2 of these engines (older L models), and the sleeved 6.5 diesel for little trouble, but nothing like this. Now wifey understands why my 2012 Denali with 130k is my baby! I put royal purple in ‘er
and additives when I empty the gas down to use occasional E85. I don’t drive her short hops, and I use Hi-Test in a heartbeat…
2016-2024 6.2 V8 in manual trans equipped Camaros and 2015-2019 Corvettes 6.2 V8 equipped with manual trans do not have AFL and therefore (fortunately) have not experienced this issue.
AFM, not AFL
I think the LT1 6.2 V8 has the AFM components, but AFM is not enabled on manual
trans cars via the engine computer. That’s what it says in the Chevrolet Performance Parts Catalog for the LT1 crate engine (19431953). The LT1 Head/Hot Cam Kit (19333525) includes 8 new lifters to replace the 8 AFM lifters. Since the AFM is disabled, probably the AFM lifters don’t wear out prematurely. On my 2018 Camaro SS 1LE, I’ve been using the GM Mobil1 ESP Formula 0W-40 engine oil since it became available. I also use Shell 93 octane gas from a Top Tier station.
If I bought a new truck, I would disable the AFM via a tune or an OBD port plugin device.
Doing such things voids your warranty
My 2006 Escalade has 185,000 on the original 6.0L Vortec. Runs great!
And with frequent oil changes it probably still will after another 125K.
You would probably need a tranny job due to common hard part failures or the clutches just wearing out.
Another overlooked problem is GM recommends Top Tier rated fuel in their engines with cylinder deactivation. Use of cheap fuels that contain little to no detergent additives causes carbon to build up on the top of the pistons in the cylinders that get deactivated.
The carbon will build to the point where it causes clearance issues. Once the Piston starts hitting the head and the valves it will cause unspeakable damage inside the engine.
Hopefully people will heed the warning if they have cylinder deactivated engines, to only use quality gasoline with high detergents.
You can Google Top Tier to see a list of gas stations that sell Top Tier rated fuel.
Most national brands sell Top Tier rated fuel and have a sticker on the pump that says Top Tier.
The major automotive companies have been complaining to the government for years that there wouldn’t be so many problems if the refiners started selling better quality fuels.
Good point and this has also been a known problem for direction injection engines for a very long time. Although I’m not sure even quality gas can keep the carbon buildup from happening.
John,
We do know that high detergent gasoline does reduce carbon build up. Low or no detergent gasoline causes carbon build up.
I have a GMC Acadia with the 3.6 V6. That engine has both direct injection and cylinder deactivation. That makes that engine doubly susceptible to carbon buildup.
GM does do real life engine teardowns all the time. Let’s hope GM knows what they’re talking about. Time will tell.
Endeavor to persevere.
I have a 2.8 diesel Colorado and it’s been amazing so far. 80,000 miles. But I read a lot about mfg issues and there have been a lot of issues with GM lately. There 3 cyl failures, fuel pump controller failures and just plain really poor design issues. I just bought another vehicle but it’s not a GM……. And I been reading a lot about cylinder deactivation issues that have not got any better over many years. GM hasn’t made cylinder deactivation any better. It’s not if it’s when. There is absolutely no reason for there to be any dirt left in an engine during assembly. This is pure cutting corners to save a buck.
I have always been pro GM and this really makes me mad that they are ruining there reputation this way.
Also, all these stupid EPA rules designed to save the planet are causing more pollution because of all the failures. Casting a new engine is not earth friendly…… Total idiots….
What ever happened to repair shops that could replace lifters and/or bearings?
The problem with halting production at Arlington and any other plant producing vehicles with the 6.2 and diverting all new engines to warranty claims is that GM literally lives off of big SUVs and pickups with this engine. Without them, GM can’t sustain their operations. They’re losing too much money on EVs and have already had numerous layoffs in the last year (more happening right now) plus instituting their “winning with simplicity” initiative as they try to offset the drag on the company from Ultium.
It’s the right thing to do to fix sold vehicles first but I wouldn’t think GM can afford to do the right thing. It’ll end up costing them in future sales but they may have no choice.
IOW pay now or pay later.
Also those new cash flow 6.2s that GM needs to sell won’t help when they start piling up on the lots. Who’ll buy them after a disaster like this? Who’s gonna risk it? “But these are updated and won’t do that!” never sold a vehicle.
Reputations take decades to build and just one bad run of vehicles to destroy.
I don’t remember having any power train issues with the first car my Dad bought me in 1970 for $600, a 1966 Malibu coupe with a 283 2 barrel with a two speed Powerglide transmission. Had chrome reverse wheels that I kept spotless. No problems with the 1972 Malibu 350 two barrel, 350 that replayed it in 1973 either (until loaned to a friend who totaled it). Followed by ‘72 Chevelle SS 350 4 barrel, 1975 Camaro RS 350 4 barrel auto, 1979 Z28, 1984 Monte Carlo SS, 1992 Lumina Euro, 2002 Impala LS (blew up 3800 v6 motor last year at 200,600 miles due to undiscovered hole in cheap plastic intake manifold), kept ‘79 L48 Covette auto 33 years and never touched OE drive train, no issues with ‘64 Malibu SS vert 283 Powerglide or ‘70 Chevelle SS396 4 speed late Dad & I had restored. Having no issues with ‘17 Camaro (since A8 flush), ‘20 Equinox or ‘24 Cadillac XT4 (sadly will be first and last as don’t want or need EV where I live), all bought new.
Actually first vehicle was a ‘65 El Camino 327 auto. No problems there either except not cool three dudes side by side riding around in 1970, not cool. BTW, Dad was insurance agent, Grandfather was a Chevy salesman. Lots of arguments, but no big blocks for me until Dad & I restored the ‘70 Chevelle SS 396 when I was in my late ‘20’s. Great memories but great upper case GM vehicles.
Out sourced parts, poor labor practices (don’t give a damn) are to blame. The overall fuel economy is almost the same as when we still had the small block 350’s. Go back to making less techno junk. again the tech is made where? Right China! make vehicles with automatics, a/c analog gauges, kickass stereo call it good. you would sell all you make and fast!
Yes a lot of the tech fluff could go.
However: economy. Today’s trucks are heavier, with a lot more power on tap, and are dong it with less energy in a gallon of gas (thanks to ethanol). So pretty good if we’re getting all that for the same MPG.
I just purchased a 2025 GMC Denali Ultimate Sierra with a 6.2, 10 speed transmission in late December of 2024. So my engine was obviously produced in 2024. Is there a way to tell if my engine was produced after corrections were made in the production process?
Do I smell a bailout in the back room on the way?
LOL. Did you see how much money GM made last year???? Feel free to crawl out from under your rock more than one time per year.
’21s were affected too. Mine went out at 25k, but the dealer had me up and running with a brand new engine within 2 weeks… VERY disappointed but otherwise the truck is solid. No problems since.
These positions engines are know as the sean fain special
Meanwhile GM experiences record profits and employees are getting profit sharing checks 🙄
I bought a 23 High Country with the 6.2. I have 14,668 miles on it and it’s the best vehicle I’ve ever owned. I’m very concerned about all the reports of engine failures. When I bought my truck I got the extended warranty. I have till November on the factory warranty and 4 more years with the addition of my extended warranty. I pray to God that this is resolved before I’m out of warranty 🙏🏾🙏🏾🙏🏾🙏🏾🙏🏾🙏🏾🙏🏾
Get rid of the DFM and the engines will last! Simple.
Why doesn’t the 5.3L have the same issues?
All of these engine problems were caused by the owners. They read some article on the internet to deactivate AFM because people had a few issues who were not changing there oil on time. These engines are complex and require you do do correct maintaince. So they all did now the oil passages for the lifters are slugging up because of no oil movement and the oil is being cooked. IF I were GM I issue a statement users who de-active AFM will damage there engines. The lifter collapses and because the users turned off AFM it cannot pump back up. This is 100% the owners fault.
You will get 500k our of a AFM engine just leave it alone and do not deactivate and keep the oil changes at 3-4k miles. Use the correct oil. Do not wait and do 10k oil changes … To many people on the internet think they know and spread false information.
Now this is a lie!! You are no mechanic. It is not good for engines to shut down half of their pistons while driving. Talk to any SAIN mechanic and he will tell you the truth…man where do these people crawl out from…their parents basements??
I heard this weekend GM has ask the New EPA chief and the white house if they can stop with the active fuel management. That tells you right there they know one of the main issues is this EPA crap. Hopefully better ideas prevail instead of ones that don’t fix a problem but make it worse. Remember plastic bags compared to paper. Seems now the EPA and greenies had plastic bags…they were told at the time it was bad idea.
There’s zero % chance gm is going to stop or even slow down final assembly of their most profitable vehicles in order to shift those engines over to service parts.
The only way those engines are going to be built is on OT or extra shifts at the engine plant(s) and up and down the supply chain. And that’s assuming there’s even available ”stretch” production capacity. It’s not going to be easy or fast even if gm really wanted to the right thing. With this management team that’s not a given.
As for class action suits, they consider those just a normal cost of doing so they shrug them off. Plaintiffs attorneys are the pain beneficiaries anyway. They do pay attention when the Feds get involved however so complaints to them really do matter.
I guess GM can’t make engines anymore or are they buying cheaper parts ,,what an embarrassment
“The National Highway Transportation Safety Administration on Thursday said it was investigating an estimated 877,710 vehicles after receiving 39 complaints from users of GM vehicles equipped with L87 V8 engines.Jan 17, 2025”. Why does the article say that the NHTSA has received thousands of complaints?!
My 2023 Escalade ESV engine was replaced last September 2024. Spun bearing at 59,530 miles. So far replacement engine good at 20,000 plus miles. Waited for repair approximately one month. Full warranty coverage.
i think GM should reach out to the customers with the affected 6.2 engines. The powers at be in GM are too chicken $hit to do so.
maybe if GM had to make my truck payments on a truck i cant even drive they might think different.
I agree. I have been waiting on parts for 7 months for a 2022 GM truck. Global parts production has told me the parts i need arent even in production. They have done nothing. I bet they don’t even drive GM products.
If GM thinks Im going to let this go they have another think coming . Im going to be all over them like a bum on a baloney sandwich until I get my new engine.
I think an excellent solution would be to swap in Ford 5.2 Predator V8s!!! Reliable, durable and powerful! Now at 800 horsepower!!
No excuses. GM executives should be fired.
Absolutely!!
I have heard the GM is quietly asking the EPA if they can disable AFM and DFM going forward since we have new head of the EPA and they are not as concerned with car emmisions which are cleaner than anytime in history. No need for it. Just a waste of money and time.