Problem was resolved. Head gaskets were bad. I had ryan at maxx performance do the work for me. I was planning on doing it all myself because that’s the kind of guy I am but with having a newborn and being gone for 14 days at a shot I decided to have a professional do the work for me. Turns out the up pipes on my truck were cheap ebays that’s cracked so I got ppe up pipes installed along with lml manifolds and had him add an egt gauge to pair with my cts2. Obviously I had it studded as well and had him put a new water pump on while he was in there. He treated me very well and gave me a good price. That was back in April and she still runs like the day I picked it up. Thanks to everyone that had helped me through the process. The dead give away was the rock hard upper coolant hose as stated above. Just never thought you’d need to do HG’s with 124k on the clock.
‘06 LBZ Sierra 2500HD AWD. K&N CAI, EGR Block plates, 3” DP to 4” MBRP, transgo jr, edge insight CTS2. Full AMSOIL fluids.