[dmjlambert]

I forgot to mention, I replaced the fuel filter the other day, thinking that could be the problem, and the hesitation or missing episodes were not cured by that new filter. In 2015 the truck got a new fuel tank and sender, replacement rubber fuel lines between tank outlet pipe and frame and between frame and fuel pump, and the fuel line along the frame and from the sender through the cab floor flushed out. It has a mechanical fuel pump.