2nd engine failure, waiting since Oct 17/2024

[Bkihum]

So 6.2L failed at 24926 Yukon Denali 2022,towed to dealership... Engine back ordered, finally came in and it was bad. I don't understand how GMC doesn't have a cut off on the engine issues.They are rolling the dice with our money. The 2nd engine started ran for `15 min and locked up with the marble sound. I was advised that it may have failed due to not pre lubing prior to starting. I was standing next to the vehicle when it froze up and it was the exact same noise that I heard when it originally left us stranded. Im still making car payments and insurance.I filed a claim with GMC customer support.We will surely take a big hit when we trade as car fax keeps track of all issues according to vin number.Last but not least they keep trying to make me accept one small car to another to use I ask for something comparable and they won't do it.

so 2nd engine arrived at dealer monday12/16/24. Hope they prelube this one.

Vehicle returned to me 12/20/24……..Merry Christmas

 

[B-train]

I'd get a lemon law attorney involved or call GM about a buyback. Being a 2022, the hit will be substantial, let GM eat the turd they made....

 

[jfoj]

What were your Oil Change Intervals? Do you go by the OCI?

I have concerns on these engines that fuel dilution of the oil is a problem, so shorter OCI's might be wise?

Understand that you may not need to worry about this as you may get out from under this vehicle. I plan on changing oil every 3500-4000 miles and obtain oil samples from each change to hopefully see if there is excessive wear occuing as well as fuel dilution.

I realize the Oil Change Interval had nothing to do with the replacement engine. Was the rediator replaceed along with the oil lines or did the oil lines at least get flushed out?

I would recomment to the shop to fill the oil filter with oil before installing it if the replacement does not have a filter alreay installed. Then disconnect the fuel pump fuse or crank sensor and crank the engine 5-6 time before starting to hopefully prime the engine with oil.

Can clearly understand how frustrating this must be.

Good luck.

 

[Bkihum]

What were your Oil Change Intervals? Do you go by the OCI?

I have concerns on these engines that fuel dilution of the oil is a problem, so shorter OCI's might be wise?

Understand that you may not need to worry about this as you may get out from under this vehicle. I plan on changing oil every 3500-4000 miles and obtain oil samples from each change to hopefully see if there is excessive wear occuing as well as fuel dilution.

I realize the Oil Change Interval had nothing to do with the replacement engine. Was the rediator replaceed along with the oil lines or did the oil lines at least get flushed out?

I would recomment to the shop to fill the oil filter with oil before installing it if the replacement does not have a filter alreay installed. Then disconnect the fuel pump fuse or crank sensor and crank the engine 5-6 time before starting to hopefully prime the engine with oil.

Can clearly understand how frustrating this must be.

Good luck.

All oil changes at the dealership were on time with recommended oil and filter. I also checked the oil every other week.

 

[15burban]

All oil changes at the dealership were on time

So did you go by the oil life monitor? I think that's what @jfoj was asking.

 

[Bkihum]

All oil changes at the dealership were on time with recommended oil and filter. I also checked the oil every other week.

So did you go by the oil life monitor? I think that's what @jfoj was asking.

yes ,I actually had every service between 5ooo to 6000 miles

 

[Stbentoak]

What were your Oil Change Intervals? Do you go by the OCI?

I have concerns on these engines that fuel dilution of the oil is a problem, so shorter OCI's might be wise?

Understand that you may not need to worry about this as you may get out from under this vehicle. I plan on changing oil every 3500-4000 miles and obtain oil samples from each change to hopefully see if there is excessive wear occuing as well as fuel dilution.

I realize the Oil Change Interval had nothing to do with the replacement engine. Was the rediator replaceed along with the oil lines or did the oil lines at least get flushed out?

I would recomment to the shop to fill the oil filter with oil before installing it if the replacement does not have a filter alreay installed. Then disconnect the fuel pump fuse or crank sensor and crank the engine 5-6 time before starting to hopefully prime the engine with oil.

Can clearly understand how frustrating this must be.

Good luck.

None of the above is a valid reason for the 1st or 2nd engine to fail....Period. The 1st engine was well within service requirements and certainly not "Way overdue for service".
An oil analysis would have probably revealed the oil was well within parameters before the engine grenaded. No amount of oil changes will fix engines that aren't built and inspected to the correct tolerances. It's just plain shoddy manufacturing and inspection and sent thru anyways. What if they built aircraft engines like this?

 

[GMCnewbee]

My 2022 has 19,750 miles now and you guys are making we nervous. I will report anything that comes up, but I am hoping it will be OK. It will be OK won't it?

 

[KMeloney]

My 2022 has 19,750 miles now and you guys are making we nervous. I will report anything that comes up, but I am hoping it will be OK. It will be OK won't it?

You'll either never have a problem, or you will and GM will replace your engine.

It appears that most of the people who have reported engine failures here recently joined the forum and posted about their failure the same day. So, I'd imagine that we, here, are going to hear more horror stories than the general public -- and that the vast majority of the thousands of Escalades, Tahoes, Yukons, and pickups on the road won't ever have an issue.

I had my '09 Tahoe strand me (and others who were in the truck at the time) on the highway twice. Once was due to a failing battery, and the second time was due to a fried alternator. So, it doesn't have to be a complete engine failure that causes you to need to have your truck towed to a dealership for repairs. This stuff happens, and never at a good time.

My '23 with the 6.2 is "in the range" for a total engine failure, but I'd say that I'm more aware and vigilant than nervous. Fingers crossed!

 

[Bkihum]

My 2022 has 19,750 miles now and you guys are making we nervous. I will report anything that comes up, but I am hoping it will be OK. It will be OK won't it?

I hope so,believe me when I tell you it is a nightmare

 

[Bigburb3500]

I hope so,believe me when I tell you it is a nightmare

I am not an expert on the subject but I believe Lemon Law does not necessary have age limits so you likely will be able to apply for it. It’s super unfortunate that you rolled the dice and it did not work… twice no less. I hope it gets resolved for you.

 

[StephenPT]

You'll either never have a problem, or you will and GM will replace your engine.

This is the key point. These engine failures are caused by out of tolerance lifter bores. Either they're in tolerance or not. No amount of early oil changes, expensive synthetic oil & filter or other methods to preserve engine life will make any difference if your engine is out of tolerance. If it is out of tolerance it's only a matter of time before failure - fortunately for those that do experience the failure it's relatively early life and will fall under the powertrain warranty.

 

[Bkihum]

This is the key point. These engine failures are caused by out of tolerance lifter bores. Either they're in tolerance or not. No amount of early oil changes, expensive synthetic oil & filter or other methods to preserve engine life will make any difference if your engine is out of tolerance. If it is out of tolerance it's only a matter of time before failure - fortunately for those that do experience the failure it's relatively early life and will fall under the powertrain warranty.

Totally agree with your view, but do not understand why there is no start and stop point. They only put out a bulletin to the dealers and kept loading the engine to the body and move down the line.
Then the buyer is the final inspector that catches the issue when the engine goes south. ….. Now the wait for replacement starts and starts all over again to wait for the second engine. If you have a dealer that could care less it’s a nightmare.

 

[Bigburb3500]

To add to it too, these engines have been around for so long, one would think the bugs would have been worked out.

 

[KMeloney]

To add to it too, these engines have been around for so long, one would think the bugs would have been worked out.

These are “bugs”— they’re the result of a batch of bad parts.

 

[Stbentoak]

These are “bugs”— they’re the result of a batch of bad parts.

What's a "batch" of parts? Like 3 years worth?

 

[KMeloney]

What's a "batch" of parts? Like 3 years worth?

Well, GM is suggesting that there’s a range— so, maybe!

 

[GlennSullivan]

I am not an expert on the subject but I believe Lemon Law does not necessary have age limits so you likely will be able to apply for it. It’s super unfortunate that you rolled the dice and it did not work… twice no less. I hope it gets resolved for you.

Lemon Laws vary from state to state. As you can see below NY and FL both have a 24 month limit on new vehicles, but NY has an 18K mileage limit and FL have a more lenient 24K mileage limit.

Here is NY law
The New Car Lemon Law protects those who buy or lease new cars or motor homes that turn out to be "lemons." If your car does not conform to the terms of the written warranty and the manufacturer or its authorized dealer is unable to repair the car after a reasonable number of attempts, you may be entitled to a full refund or a comparable replacement car. NOTE: A car is considered new if it was purchased less than two years from its original delivery date and has fewer than 18,000 miles on it.
Here is FL Lemon Law
Time limit: Florida's Lemon Law has a mileage limit of 24,000 miles. You have 24 months from the delivery date of your vehicle to take action under the Florida Lemon Law. Mileage limit: The vehicle must have 24,000 miles or fewer on the odometer, whichever comes first.

 

[Z15]

Friends son is a 20+ yr gm technician. We were bugging a while back why he is not driving a newer truck (has a 2006). His reason; ever since GM went to these active fuel management (AFM) and now dynamic fuel management (DFM) engines they (in his shop) seen a major uptick in engine related issues. With AFM it was burning oil and now with DFM is lifter failure that often takes out the engine with it. GM does not care, under warranty they fix, after warranty the customer pays and GM makes $ selling the parts. Said a lifter job can cost upwards of $8,000 +- providing it does not destroy the engine in the process. My neighbors 2021 Silverado 5.3L had the lifters destruct at 90,000 miles and they had to pay nearly $9,000 in repairs at a Chevy Dealer. Left him stranded out in nowhere land at 3am on a Sunday. RAM has the same lifter issues. Its all because of EPA and fuel economy goals they have to meet.

 

[Bigburb3500]

Lemon Laws vary from state to state. As you can see below NY and FL both have a 24 month limit on new vehicles, but NY has an 18K mileage limit and FL have a more lenient 24K mileage limit.

Here is NY law
The New Car Lemon Law protects those who buy or lease new cars or motor homes that turn out to be "lemons." If your car does not conform to the terms of the written warranty and the manufacturer or its authorized dealer is unable to repair the car after a reasonable number of attempts, you may be entitled to a full refund or a comparable replacement car. NOTE: A car is considered new if it was purchased less than two years from its original delivery date and has fewer than 18,000 miles on it.
Here is FL Lemon Law
Time limit: Florida's Lemon Law has a mileage limit of 24,000 miles. You have 24 months from the delivery date of your vehicle to take action under the Florida Lemon Law. Mileage limit: The vehicle must have 24,000 miles or fewer on the odometer, whichever comes first.

Correct. There is also manufacture buyback agreements that accommodate outlier situations like this one with the OP. It still brands the title as a Buyback unit but does not negatively brand the vehicle as Lemon Law. Makes it easier to resell and usually looks at situations, like Lemon Law, where reasonable attempts have been taken to fix the vehicle, but due to a limiting factor cannot be done.
Great add/find on definition of lemon law! Thanks!