The way I receive all this considering the production window is from 6/1 - 9/15, is GM must have started sourcing parts from a different manufacturer or using different materials due to the pandemic. Who knows what decisions were made behind closed doors by the bean counter at GM. Fact is they had to start making motors again. Whether due to a part shortage or to save a few bucks to make up for lack of production, the later always being a factor, the reality is they started installing an inferior part without proper testing. Clearly some change has been made as of 9/15.
As someone said earlier, all the bs you sign at the table holds them as accountable as they choose to be. There are many people sitting somewhere with calculators that make sure regardless of rate of failure and cost to fix, that profit will remain. Ever see Fight Club? lol
Us as consumers either need to deal with it, go elsewhere and accept some other manufacturers corner cutting, or buy a bicycle and work on our cardio. But as I said earlier, valve springs have been a fundamental component of gasoline engines since the beginning. Something ALL car makers should be getting right 100% of the time. But suckers are born everyday.... I guess I am one of them too, as well as the 216,627 other member on this forum. lol
Just keeping my fingers crossed my truck doesn't grenade on me while I am 5 miles deep in the woods. If so, I am sure I will be on the F**K GM train as well.