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Started By
Message
re: GM is issuing a massive stop-sale over 6.2L V8 engine issues
Posted on 4/25/25 at 10:58 pm to wadewilson
Posted on 4/25/25 at 10:58 pm to wadewilson
quote:
The new Tundra engines are dogshit too.
The problem with the early engines has been fixed, is my understanding. It was a manufacturing issue that’s been resolved. Are there are other problems reported?
Probably the Ford 5.0 is the best bet for reliability but don’t they have transmission problems?
How has Ford avoided having to put AFM in the 5.0? Is it bc they sell enough ecoboosts to offset?
This post was edited on 4/25/25 at 10:59 pm
2
Posted on 4/25/25 at 11:00 pm to ShermanTxTiger
quote:
Came so close to buying a 6.2 lt sierra denali last December in Opelousas. They wouldn't take $700 under listed price. I bought the same truck with a 5.3 a week later in Slidell. Lucky me.
See, I would’ve paid extra for the 6.2. 5.3 was fine but for the high cost of these trucks I insist on more power. 5.3 isn’t that fun. It’s fine.
This post was edited on 6/25/25 at 6:07 pm
Posted on 4/25/25 at 11:17 pm to biglego
quote:
How has Ford avoided having to put AFM in the 5.0?
They haven’t, unfortunately. It’s now on all 2024+ trucks with the 5.0.
Supposedly no issues though and very easily defeated.
Posted on 4/26/25 at 6:49 am to biglego
The 5.3 is fine really. The AFM system is still junk but if you do the delete on it, helps tremendously.
I'm still a fan of the LS3 motor. 6.2 and no AFM.
I'm still a fan of the LS3 motor. 6.2 and no AFM.
Posted on 4/26/25 at 7:04 am to Allthatfades
quote:
I’ve got a 2013 Silverado and I will run it til the wheels fall off
Same here. 260k miles and counting.
This post was edited on 4/26/25 at 7:05 am
Posted on 4/26/25 at 7:38 am to stout
I’m no engineer, but how is it possible to mess these up this bad? Don’t they test etc before releasing a new engine?
Why would anyone buy a car from a company that can’t even make an engine right?
Why would anyone buy a car from a company that can’t even make an engine right?
Posted on 4/26/25 at 8:19 am to N2cars
Buy lifters from China
Posted on 4/26/25 at 8:45 am to RebelExpress38
quote:
I’m no engineer, but how is it possible to mess these up this bad? Don’t they test etc before releasing a new engine?
The issue with the GM engines is they use cylinder deactivation to improve fuel milage. The lifters that ride on the cam lobes which push the rods up and down that open and close the valve will collapse and the valves no longer operate and the lifters will ride the cam lobes to the point of shredding them causing all of the knocking noise.
Some engines last longer than others but ultimately they will fail at some point as opposed to engines that don’t use the cylinder deactivation. Even if you disable it the lifters can still fail.
This post was edited on 4/26/25 at 8:46 am
Posted on 4/26/25 at 11:33 am to Allthatfades
quote:
I’ve got a 2013 Silverado and I will run it til the wheels fall off
Most GMs prior to 2016 are good. 2016 and after have terrible problems with transmission and more recently models (2018 forward) with engines.
Posted on 4/26/25 at 11:35 am to Flick007
quote:
Most GMs prior to 2016 are good. 2016 and after have terrible problems with transmission and more recently models (2018 forward) with engines.
wife wants to go get a Tahoe today
Posted on 4/26/25 at 11:42 am to 777Tiger
quote:
wife wants to go get a Tahoe today
Apparently if you get the 2025 and you are gold!
Posted on 4/26/25 at 11:44 am to Flick007
quote:
Apparently if you get the 2025 and you are gold!
that's what I'm hoping, trying to google info on it, maybe it will give me leverage when negotiating extended warranty
Posted on 6/25/25 at 2:52 pm to 777Tiger
I have a 22 sierra 6.2l. Engine just failed at 52k. No knocking noise. Just revved up to max rpms and would no longer start. It's at the dealership getting a new engine installed.
Posted on 6/25/25 at 2:55 pm to stout
I got the duramax baw, im good
Posted on 6/25/25 at 3:32 pm to mwlewis
quote:
The issue with the GM engines is they use cylinder deactivation to improve fuel milage. The lifters that ride on the cam lobes which push the rods up and down that open and close the valve will collapse and the valves no longer operate and the lifters will ride the cam lobes to the point of shredding them causing all of the knocking noise.
Install this and go. It deactivates DFM and disables Auto start/stop.
My 24 Silverado runs so much smoother now. Well worth the $250.
Range Technologies
Posted on 6/25/25 at 3:35 pm to Woodlands Tigah
does that void warranty and if you remove it can dealer tell you have been using it?
Posted on 6/25/25 at 3:44 pm to tigerinms
quote:
does that void warranty and if you remove it can dealer tell you have been using it?
I honestly don't know.
It only takes a few minutes to install/uninstall, so If I need warranty work, I'll remove it and find out.
Posted on 6/25/25 at 3:47 pm to biglego
quote:
Probably the Ford 5.0 is the best bet for reliability but don’t they have transmission problems?
Define "problem". Is the tranny gonna fall out or flat fail in the first 150K miles? No. Is it going to struggle at times to find 3rd or 4th gear in that stupid 10 gear set up sometimes when pulling out into oncoming traffic? Yes.
But that 5.0L Coyote engine is solid.
Posted on 6/25/25 at 3:56 pm to Colonel Angus
Chevy straight six 250 days hold my beer. Wasn’t the most powerful but would run forever.
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