It did have cold start rattle..i get the truck back finally this Thursday and I’ll come back to this thread and give you run down on what they did i may be wrong on some of it…but it’s been sitting there for two months and they told me it was for the TSB and my front stabilizers were needing change…the main reason i took it in was because driving to work one day my turbo was boosting and dumping and the truck was shaky..drove it home and had no issues on the drive home