I wasnt going to sign up to post until my 2021 Silverado 6.2L failed again at 11500 miles (still waiting on confirmation of what happened) , my first call from service advisor said a main fuse blew causing my engine to shut off on a busy highway. The first time a lifter failed was at 8000 miles, replaced one side and was told the likely hood of this happening again is very low.
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