Big T
Well-Known Member
Oil pump belt was fine. Oil starvation and jumped time.
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GM 3.0L Duramax Tear Down
- Thread starter Big T
- Start date
jrsavoie
Recruit
My cousin liked his the last time I talked to him. Not sure what he has for miles on it, or issues with it
- Staff
- #4
Here is another tare down from the same guy. Interesting results.
Hindsight being 2020...
The $10,000 3.0 Duramax Timing Chain Flaw – What GM Fixed and How to Protect Your Truck
Posted on April 15, 2025Owning a Duramax diesel is a point of pride, but it comes with the responsibility of staying on top of maintenance – especially when a potential $10,000 repair looms. If you’ve got a 2020 3.0 Duramax (LM2) or are eyeing one on the used market, you need to know about a...
www.duramaxnews.com
MrMarty51
Well-Known Member
Good seeing some postings from You My Friend.Hindsight being 2020...
The $10,000 3.0 Duramax Timing Chain Flaw – What GM Fixed and How to Protect Your Truck
Posted on April 15, 2025Owning a Duramax diesel is a point of pride, but it comes with the responsibility of staying on top of maintenance – especially when a potential $10,000 repair looms. If you’ve got a 2020 3.0 Duramax (LM2) or are eyeing one on the used market, you need to know about a...
Okay, trains back on the tracks, nothing to see here.
- Staff
- #7
Another 2020 3.0 Duramax teardown. Timing chain strectched and slipped off the gear.
- Staff
- #8
I didn't watch all the videos, but I wonder what failure rates they have (like GM would ever share.. but... )? I have 75K on mine now.. this truck is the longest I've ever kept a truck. But I fully expect to have this sold by 100K, so not much for me to worry about (hopefully).
- Staff
- #9
What year is it? 2020?
- Staff
- #10
jrsavoie
Recruit
LOL
I don't think I've ever kept a truck for less than 100,000 miles
- Staff
- #12
I think they revised the 2021 model. Hopefully you're good.
