DC19AT4Ne

The GMC shop called Thursday and said they had ordered a brand new engine from the factory to install. I asked specifically what happened with the dead engine, but they didn’t tear it down completely, they did enough analysis to realize it couldn’t be repaired in reasonable fashion.

No parts or smoke that I saw. No symptoms prior to this event, it seemed to come out of the blue. All indicators (oil, etc) were normal and Engine Check Light didn’t come in until after I lost all power.

Hello, I'm new to the forum. I bought a '19 AT4 with 6.2L V8 back in May, now with 2500 miles on it. This past weekend, driving at 65 mpg, felt sudden lurch, then loud squealing from under the hood, then complete loss of power. Unable to start after that. It was towed to closest GMC service center, still waiting to hear back. Has anyone heard of this kind of thing in such a new vehicle?