Bear with me.
With all due respect, the problem is there is too much information here. I need to know how it all comes together and works from start to finish without too many side trips.
I know what I should do is go outside and take something apart and put it back together. The two problems are she is my daily driver, and I have no idea what I'm looking at. Don't know my IP from my GP from my Turbo from my Vacuum Pump... well you get the idea.
I should probably find a diesel class somewhere, or an amenable mechanic who wouldn't mind me watching him solve someone else's problem. Just don't have the daylight hours to do it, so wondering if there is any light bedtime reading
I can tell this is a very helpful forum. I will post some more specific, and yes I'm sure dumb questions soon. But now it's off to get the 6 and 8 year olds to bed.