Engine push rod was bent which caused lifters and 1cam shaft to be destroyed. Vehicle is tore down at dealership right now. The immediate decrease of speed and power while in traffic. Then a loud bang and engine missing. Yes, dealership. No No, but once it failed check engine light was flashing, anti lock brake lights came on. In the last few weeks four other trucks, besides ours, have been into the same dealership with similar problems. At the time when our truckcame in another truck was in for similar problems. The years of the vehicles are from 2017, 2018, 2019, Chevy Silverado 5.3 liter engines.