Duramax Lifetime Supporter
Join Date: Nov 2019
Location: South Georgia
Well they indeed replaced nbr 2 nox sensor and indeed failed after just under 100 miles. Good thing I was able to dump the trailer and gear off before taking it back to the same service center in Oshkosh.
Same codes: u029d u029e p0420 p220b these are pending and permanent codes.
Have to fly home for work so we will see how it goes in a couple of weeks.
Thanks GM, thanks EPA!
2014 silverado crew cab 2500 w/t