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PSA: Do NOT buy a GM with a 6.2 engine
Posted on 8/24/26 at 8:41 am
Posted on 8/24/26 at 8:41 am
You have been warned.
Posted on 8/24/26 at 8:42 am to kywildcatfanone
Could have stopped at “Don’t Buy A GM”
Posted on 8/24/26 at 8:43 am to kywildcatfanone
quote:
Do NOT buy a GM

Posted on 8/24/26 at 8:45 am to teke184
Definitely the worst trucks on the market right now.
Posted on 8/24/26 at 8:46 am to kywildcatfanone
So using 50w oil didn't magically fix the huge crank clearances? Shocking
Posted on 8/24/26 at 8:51 am to teke184
quote:To be fair, they’re all garbage these days. Whatever you buy, get the extended warranty. Even Toyotas aren’t trustworthy anymore.
Don’t Buy A GM”
Posted on 8/24/26 at 8:52 am to kywildcatfanone
They need a stop sell issued on them.
Posted on 8/24/26 at 8:53 am to UncleFestersLegs
quote:
So using 50w oil didn't magically fix the huge crank clearances? Shocking
I thought it was the opposite? Too tight of a clearance.
Posted on 8/24/26 at 8:54 am to backbone
They all suck now. Even the Tundra sucks with all the engine failures.
Posted on 8/24/26 at 8:57 am to Uncle JackD
quote:
To be fair, they’re all garbage these days. Whatever you buy, get the extended warranty. Even Toyotas aren’t trustworthy anymore.
It’s like the glory days for car dealers. New and used prices are at all time highs, then you’re almost forced to add on thousands in warranties because it’s not a question of if, but when something major goes out.
My office mate just had her ‘23 Yukon XL roll over 100,000 and on her way home last week, all the dash lights came on and the car practically shut off. She got it to the shop and is waiting on a diagnosis. The code is a cylinder 6 misfire, which could be anywhere from a few hundred to a $10,000 repair.
Hers is not a 6.2L I don’t thing, but it’s still a $70,000 truck that shouldn’t be costing that much in repairs after 4 years and 100,000 miles
Posted on 8/24/26 at 8:58 am to kywildcatfanone
Dude went on 10 minutes talking about engine failure, but not explaining why they're failing...
Still crazy why GM is using such a lightweight oil...
Still crazy why GM is using such a lightweight oil...
This post was edited on 8/24/26 at 9:07 am
Posted on 8/24/26 at 8:59 am to LSUlefty
quote:
They all suck now.
The safest bet is the F150 w/ Coyote 5.0 V8
Posted on 8/24/26 at 9:00 am to kywildcatfanone
Has the cause been positively determined? Angled Oil holes in the crankshaft?
Posted on 8/24/26 at 9:03 am to kywildcatfanone
Could just say don't buy a vehicle manufactured after 2020. They all suck arse now.
Posted on 8/24/26 at 9:04 am to LSUGUMBO
quote:
It’s like the glory days for car dealers. New and used prices are at all time highs, then you’re almost forced to add on thousands in warranties because it’s not a question of if, but when something major goes out.
You can 100% thank govt regs for this. Regs on efficiency and sales. The market has not been anywhere close to free for decades and this is the culmination of that. Cars are a snapshot of what socialism will bring us everywhere else.
Posted on 8/24/26 at 9:09 am to LSUlefty
I have to agree with you here. The ford diesels are still good. I run them hotshotting
Posted on 8/24/26 at 9:09 am to SingleMalt1973
quote:
The safest bet is the F150 w/ Coyote 5.0 V8
Coworker had one blow a few months ago. Got it replaced under warranty, then the warranty engine blew.
Posted on 8/24/26 at 9:09 am to kywildcatfanone
They perform “Like a Rock”.
Posted on 8/24/26 at 9:10 am to HeadSlash
quote:
Has the cause been positively determined? Angled Oil holes in the crankshaft?
No, which is why the recall has been expanded and there is now an investigation because GM told them they had a fix, which is now failing on vehicles with the fix.
Posted on 8/24/26 at 9:16 am to dkreller
I guess I assumed GMs solution of going to more than double the oil viscosity wasn't because the tolerances were too tight.
After a bit of reading, apparently the journal oiling ports were machined too large causing low oil pressure so increasing viscosity is definitely a "fix" but a shitty one especially for a new engine
After a bit of reading, apparently the journal oiling ports were machined too large causing low oil pressure so increasing viscosity is definitely a "fix" but a shitty one especially for a new engine
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