The new Tundra TTV6 had a manufacturing process defect that allowed shavings to get into the engine bearings, which causes catastrophic engine failure.
They still don't have a solution to the problem. The shavings amount/size is supposedly common among all engine manufacturing processes, but the new engine design has such tight tolerances that it's now problematic.
alt Hacker News
The new Tundra TTV6 had a manufacturing process defect that allowed shavings to get into the engine bearings, which causes catastrophic engine failure.
They still don't have a solution to the problem. The shavings amount/size is supposedly common among all engine manufacturing processes, but the new engine design has such tight tolerances that it's now problematic.