Hi All,
I got about a block from my house and it quit.

I cranked and cranked and it was firing intermittently, but couldn't keep it going.
Here's the weird part: When I took off the filter I noticed a brief sucking sound when it came loose. Didn't think anything of it at first and proceeded put a new one on and filled it with atf. Cranked again and it started only briefly. I decided to have a look at the pre-filter and as I took it off I heard the sucking sound even louder this time.

And it was totally dry.
It seems I have a blockage upstream right? I doubt it's the tank screen because it has been running great, and I have yet to see a speck of anything in the pre-filters.
I have a full tank of pump B99 mixed with a couple gallons of regular diesel, and the temps haven't gotten to freezing yet.
By the way, this same exact thing happend a couple of weeks ago. I didn't look at the filters because I was too busy. My wife got it started while I was away and it's been running great till now.
Anybody know what's going on?
Thanks