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GM Hit With Another L87 Engine Lawsuit Claiming Failed Recall

General Motors is facing yet another class action lawsuit targeting the naturally aspirated 6.2L V8 L87 gasoline engine. The L87 can be found under the hood of a broad variety of GM full-size trucks and SUVs, with the latest lawsuit pointing to models produced between the 2019 and 2024 model years.

According to a report from CarComplaints, Brian Markus v. General Motors, LLC was filed in the U.S. District Court for the Eastern District of Michigan. The case alleges that GM’s recall efforts won’t fix underlying mechanical issues, potentially leaving tens of thousands of affected vehicles vulnerable to engine failure.

GMC Sierra 1500 AT4 front end.

The lawsuit includes the following L87-equipped GM vehicles:

6.2L V8 L87 engine.

The lawsuit claims that GM’s recall, which involves replacing or repairing engines only if diagnostic trouble codes are found and using a different oil viscosity if an engine passes an inspection, is “woefully inadequate” in addressing the engines’ manufacturing defects.

Plaintiff Brian Markus of Missouri bought an L87-equipped 2024 GMC Sierra 1500 that suffered an engine failure at approximately 14,000 miles. The truck’s engine unexpectedly lost oil, leading to spun rod bearings, a damaged crankshaft, and a seized engine.

6.2L V8 emblem on GMC Sierra 1500.

“Markus immediately pulled over and turned the vehicle off,” reads the lawsuit. “When Markus tried restarting the engine approximately 20 minutes after pulling off the road, the vehicle would not start. Markus was stranded on the highway for 2 hours before a tow truck came, which took his vehicle to Laura BuickGMC for further evaluation. Laura Buick-GMC determined that his Class Vehicle had spun rod bearings, a severely damaged crankshaft, and that his L87 Engine had to be replaced.”

Although the plaintiff’s truck’s engine was replaced, he’s now concerned about driving it for fear of safety risks. As is the case with many similar lawsuits, this one claims the engine’s defects reduce the value of affected vehicles.

George is an automotive journalist with soft spots for classic GM muscle cars, Corvettes, and Geo.

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Comments

  1. No proof its going to lower value. The other think is they are giving everyone if it passes the test or they get a new engine a 10 year 150k warranty. Nobody else is doing this that has had engine issues. I don’t think he has a case. It will be hard to prove value of vehicle was lost.

    Reply
    1. Actually the resale value of the 6.junk trucks has already dropped 15-20%.
      But nice display of ignorance Joe.
      Is your last name Biden btw?

      Reply
      1. Stealing names to try and spin off a different view as yours huh? The left sure love to play games like that. How original and pathetic…

        He said there is no proof, where is yours they are 20% lower? You don’t have any because it is not out there, they just announced this recall barely two months ago. It impacts 3% of the vehicles, and those it doesn’t get 150k warranty. Show me how that is going to drive down values name stealer, you aren’t tricking anyone, just making others laugh at you liberals even more and steering them away from your views. It didn’t work on riots and road blocks, won’t work here…

        Reply
        1. Reading comprehension isn’t your strong suit too much !gnorance.
          My comment was actually quite conservative especially the biden question at the end.
          Now enjoy being ridiculed for your denialism and your name will continue to be stolen until you wise up.

          Reply
      2. You ignorant MAGA dumbass

        Reply
        1. This has nothing to do with MAGA.
          Now shoo.

          Reply
  2. How do I join this class action lawsuit? My 2019 Sierra 6.2 spun two rod bearings at 98,000 miles. It cost me almost $11,000 to have the engine replaced with a 27,000 mile used engine.

    Reply
  3. As a concerned owner and prospective long-term owner of GM vehicles, I want to express my serious reservations regarding the ongoing issues with the L87 engine recall. While GM currently estimates a 3% failure rate, it’s reasonable to expect that number to increase over time as more engines experience issues outside of the initial failure window.

    This problem is already creating a chilling effect on the used market. Informed buyers conducting due diligence are likely to avoid these vehicles entirely due to the growing negative publicity, which will ultimately depress resale values and reduce consumer confidence in the brand.

    Even more concerning is the recommended mitigation for engines that pass the Picoscope test — namely, switching to 0W-40 oil, a thicker grade than originally specified. While this might help prevent premature failure, it reduces fuel efficiency and will increase the cost of ownership over time. The suggested “Supercar” oil blend with Dexos certification costs $3 to $4 more per quart, which adds up quickly for vehicles with large oil capacities and frequent changes.

    Regarding the extended 10-year/150,000-mile warranty, it’s important to note that warranties don’t always align with real-world usage. For instance, my 2022 Sierra 1500 Denali has already logged 50,000 miles in under 3 years. At this pace, I’ll exhaust the warranty in just under 6 more years — well before the 10-year mark. That leaves a significant window of exposure and uncertainty for a known engine issue that could leave me stranded without warning.

    And frankly, the peace of mind that should come with owning a premium vehicle is eroded when I have to wonder whether my engine might fail — especially if I’m in a remote or unsafe area when it happens.

    GM needs to consider more robust and customer-centric solutions, including re-engineered replacements for affected engines or a more generous and practical warranty structure based on actual driving habits and use cases.

    Reply
    1. Bro what? It reduces fuel efficiency? You bought a 6.2L v8 and you’re worried about a 0.5% increase in fuel consumption? Go get a Camry my guy

      Reply
  4. 9 years to reach 150k isn’t really “well below” is it?

    Reply
  5. The extended warranty is no where near enough compensation for the owners of the vehicles subject to this recall, we own a 2022 & a 2024 gmc 1500 both have the 6.2 liter motor, Both trucks currently have just under 50k miles on them. We tow our cobalt 262 boat with the 2024 model approximately 1500 miles per summer & last year had no issues but we are very concerned with towing it again this summer. It sucks that a person spends $65k-$75k for a new vehicle & then something like this happens thats 100% the manufactures fault. We will not buy another gm vehicle unless gm steps up further yet & in someway compensates owners of the recalled vehicles

    Reply
    1. Should have gotten the 3.0 Duramax instead.

      Reply
  6. So all the recalled trucks 2017 should be included my truck started the Chevy shake transmission went out then the lifters started ticking nobody says anything about that year i have a beautiful truck that doesn’t work and the truck has 107 on dash what to do

    Reply
    1. We had to replace the engine on our 2017 Silverado for similar issues. Truck died on the side of the road and had to get towed. Now the engine, which is a 2017 engine also, we bought is doing the same thing. Only a matter of time.

      Reply
  7. It’s not clear to me that there’s evidence that repeat engine failures are occuring in cars that have already had their engines replaced because of a failure, or because they showed the telltale P0012 OBD-2 code that indicates the engine is on the verge of collapse. Is this true? If not, then the person who filed the class action lawsuit might not benefit even if the lawsuit succeeds, since his personal grief might be judged to have been adequately addressed by the replacement of the engine. I’m more concerned with the people whose cars have not yet experienced a failure, nor yet shown the P0012 code, as GM’s response in this case is only to change the oil and the oil filler cap which indicates that the heavier oil should henceforth be used. If I were thinking of buying a used GM car and I saw the alternate oil filler cap on the engine it would be an immediate red flag for me. Expecting this, might the seller consider restoring the original cap to make it look like the engine was replaced, to avoid lowering the car’s value? If a used car dealer did this to hike the price, would it be considered illegal? Would CARFAX show how the recall was handled for a specific car, so that potential fraud like this could be caught? I have to expect that GM might be forced to do more for customers who don’t have their car’s engines replaced but are covered by the recall, such as paying lump sums for potential loss-of-value and/or significantly extending the warranties in case the P0012 code appears in the future (which is supposed to activate the “check engine” light, according to the OBD-2 guidelines). This is a very interesting case for me, even though I don’t own a car that’s affected by this recall.

    Reply
  8. Way to go Mary Barra. Until Government Motors is punished enough, they will continue to play games. Do the honorable thing and replace EVERY 6.2 out there. Went by a GM dealer, had a dozen used Escalades out front that they cant give away right now. The 6.2 market has plummeted like the Tesla market, almost worthless. Shame shame shame on Mary Barra and GM. Do the math, its a Billion dollar problem for them. Orange man needs to step in and force Mary to resolve this properly.

    Reply
  9. I’m beyond pissed off and concerned that my 2021 Escalade Sport Platinum has the potential defect to occur. There’s no telling what the driving scenario one will be in ( which can be very dangerous with engine sporadically seizing during operation ) or being stranded in some remote or compromised area. I have 56K miles on my vehicle currently and 150K miles is not enough coverage for this serious issue. I feel that the value of my SUV has plummeted due to this issue and we are basically stuck holding onto to these vehicles since no one in their right mind would purchase these vehicles without a significant price reduction. The actions GM are taking is not enough to cover loss of value or the potential safety concerns due to this issue. So much for dropping over $100K with this company for this lack of loyalty. Every single engine needs to be replaced, period.

    Reply
  10. Our Tahoe already had the enginr replaced when we bought it last year. The issue was not known with the newer tahoes , only with the 2021 model. Dealer assured us all would be fine. Once this came to light, we took the very expensive Tahoe (was supposed to be my ladt purchase before retiring) and sold it back to Chevy Dealer losing about 17,000. But at least we got most back out if it. Thats alot to lose however when you want to retire. Set us back for sure.

    Reply
  11. Don’t give a sh*t about the lost .005 mpg or the additional cost of an oil change. My concern is the lost value of my truck and the unreliable aspect of the vehicle. It seems even Toyota is having problems too along with Ford and Ram. Nissan has never been a contender. So my question is, where do we go from here. I guess I will keep my truck and pray for the best

    Joe D

    Reply
  12. Of course there will be problems , but when you change these prices for vehicles you should stand behind your product . I am still paying for ’23 sierra and i want a new engine , for the simple reason that I don’t want to be worrying every time I turn the key . At these prices every one of these should come with lifetime warranty . 150 miles is a joke . Please GM do the right thing .

    Reply
  13. One dude suggested to another that he should get a “Camry”. But that doesn’t solve the issue with my truck that I need. I didn’t buy a truck because it looked cool, I bought it because I NEED a truck for what it’s intended for. Now as far as the “Camry”, it may be practical for him and his husband, but I NEED a truck. Look, my wife drives a “Camry” as does our daughter, our nieces, my sisters, my sister-in-laws, my aunts, my mom, even both of my grandmothers and my wife’s grandmothers. They did so because it is/was practical for them. So, I leave the “Camry’s” for the girls, but like I said, I NEED my truck

    Reply
  14. At least Toyota made it right with the engines affected by the milling debris. The GM 6.2 is just a poorly designed engine and a troublesome transmission to boot. Just saw a nice looking new Silverado being towed out of the center left turn lane on a busy 5 lane roadway. Can’t even make it off the roadway. I’ll stick with my clunky, slow 4Runner with bulletproof 4.0 liter and 5 speed that will never die. Waiting to waste more of my tax dollars on another GM bailout.

    Reply
  15. First Let me Say this, my 2018 GMC Seirra 1500 Denali, is just uh Worthless Truck !! The Shakes after going above 60 mph, front End , sterring Colum vibrating, very Scary to drive. New $7,000 transmission, still no help 🤨🤨 I’m so unhappy with GM as uh Company, they need to Reinberst Me or Shut Down ..

    Reply
  16. They should do something about the valve train failures too in both the 5.3L & 6.2L with the DOD while they are at it. And transmission issues. Nothing like driving ticking time bombs. The amount of money any of today’s vehicles cost you’d think you’d have some quality to them.

    Reply

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