2019 Cascadias, fleet with issues, any fixes?

[uncleal13]

What would be a fuel related electrical issue? Water in fuel? Cold weather fuel freeze up?
Detroit manuals say not to use biodiesel over 5 percent.
I had a 2013 Western Star with a DD15 that lost its prime going down the highway once. Turned out to be road slush freezed on the end of the tank vent, causing the truck to draw fuel only from the passenger tank until it ran dry.