GM 6.2L troubles aren't over.

[02SE]

With "just in time" manufacturing....A true fix would likely cause a stop in production. I would just put Nodular Iron Cranks in them as the problem lies with some of the Forged Steel Crankshaft finishing's.

Crank grinding is an art.

Have you heard any word of the 2019 LT5 having any issues?

 

[robbobster]

The cylinder-deactivation technology in the 5.3 and 6.3 are the exact same, with the same issues. The 6.2 adds crank issues.

That should be an L86 then, AFAIK. My 2019 Yukon was built in 2018, though the pickup got them first. L86 to L87 allegedly changed bearing suppliers, AFM to DFM, added stop/start capability, oil pump appears to be unique to the L87, and the crank machining issues that GM admits. Added the flex fuel option too.

Half of the lifters in the L86 are crappy.
All of the lifters in the L87 are crappy.