So, Cummins in Sparks, Nevada replaced my fuel filter. Good thing, too. It was nasty. You should be able to look into one end of the filter and see out the other side. Not this filter. No light could pass through it at all.
So, they fixed the problem and I was able to hit the road last night.
I made it about 2/3 of the way back to Redding when the problem started up again. I had to pull over to the shoulder on Hwy 44, in the middle of Lassen National Forest and spend the night.
This morning, I called a mechanic in Susanville, about an hour southeast of me. They're going to bring me some tools so we can remove the filter and clean it. That should be able to get me to Redding where I can have the tank drained and cleaned.
Right now, I just have to sit tight and wait. It's cold up here. There's frost on the ground.