2025–2026 Duramax FAILURES Begin! GM’s NEW Engine Nightmare? Silverado, Sierra, Yukon...

General Motors just can’t seem to catch a break. The new 2025–2026 3.0L Duramax (LZ0) diesel engines are now showing signs of thrust bearing failure, with early owners already losing engines at under 10,000 miles.

In this video, we break down everything you need to know — from real owner experiences to the new GM Service Bulletin 25-NA-307, which links crankshaft end play and P06DD codes to catastrophic engine failure.

We’ll look at what’s happening inside these engines, how this could echo the 6.2L V8 and transmission disasters, and why GM might be facing yet another reliability storm across Silverado, Sierra, Tahoe, Suburban, and Yukon models.

What’s Covered:
Details on GM’s new thrust bearing failure issue
What the new TSB (25-NA-307) means for owners
Why customers are paying for diagnostic time
How this compares to the 6.2L and Tundra engine problems
What to do if you own or are shopping for a 2025–2026 Duramax

Comment below: Do you think this is just a few bad engines—or another GM-wide failure waiting to happen?