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Here is the valve would thid indicate a bad EGR? I do not drive much wit the truck and it's been sitting for the winter. Black stuff at the tip of the valve was mostly kind of dry / humid, it was humid at the upper portion of the valve as you see and mostly only on one side.
Ok, nose down, I will try that, got find a spot to do that. After a test drive cold, between 125 and 160 F, I floored it a couple of time and all I got was 5 PSI. Came back home and after 3/4 hour, I still had 4 PSI.
I did not see any white smoke this time after sitting for the night.