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While standing in the service department I asked that very same question. How can it be that far out of time without any related dtc's? Parts are supposed to show up Monday and I'm supposed to have the truck back Tuesday at some point. I will definitely keep everyone posted

Thank you for everyone that has replied and tried to help. I finally got the truck in to the dealer today. Cause for no boost and no codes was timing out of spec due to cam phasers.

Thank you for all the replys! First thing I did was take the jb4 out of the equation. I will go back over all connections. As i said in my original post, I just replaced the BOV. In doing that I had the inter-cooler out of the truck, so all connections are tight down there. Visually...

The oil level is good, right at the top of hash marks. Not sure how to test pressure sensor? The only current dtc is P0299 - under boost.

Hoping for some input/guidance with my 2018 SCREW. Truck has 38000 miles. BMS JB4 and cold air intake. Otherwise stock. Last week while driving WOT the truck lost all boost. I cant remember hearing much noise when it happened. Definitely not a turbo failure. Seemed like it went in to limp...