Fireman591
Full Access Member
Looks like valve springs are starting to fail beyond the TSB dates https://www.gm-trucks.com/forums/to...-valve-spring-not-in-the-bulletin-time-frame/Kinda wish I was in your shoes. Mine has seen the service department 5 times in 6 months (would have been 6 times if I didn't get Covid). I have over 7500 miles now and have yet to experience a no-go situation. Just recalls and cosmetic repairs. Not fun scheduling service every month. My hope is that GMC Customer Cares steps up and at least increases my warranty. It was not put together well at all and I'm at the point where I'm going to try and correct the cosmetic issues myself. Just would like to have the reassurance of an extended warranty when the big items DO occur.