Peterbilt 2015 cm2350 list of issues

[Trey7981]

Just pulled the egr cooler off and it dry with no buildup. Can see thru all the tubes that are possible based on design. The tube from the egr valve to the cooler appears dry as well. Now I’m wondering how coolant is leaking from the v-band on the rear of egr cooler. I didn’t see anything spraying externally. I’m so lost right now turbo inside is dry so is the downpipe into the after treatment. I’ll post pics for reference in a bit             not100% sure the wetness on the block could be coolant because I sprayed penetrating oil on all the bolt so none would break.. but coolant was dripping fast from the vband down to the coolant fitting going back into the block and then onto the exhaust pipe under the truck. 1st pic is the egr below 2nd is the turbo 3rd is egr tube to egr valve 4th is the coolant return from egr cooler