Originally Posted by amos1027
I hadn't thought of that, but I will tell the mechanic to look into that. Would the pressure/vent valve on the tank have anything to do with it?
Sorry, I don't know that one. Your truck's a little too new for me. Sounds reasonable though. A hissing sound (and everything else) would probably make me wonder about the pressure vent valve too.
Anyway, I was just thinking it might be a ground problem (at the tank or battery/battery cables or...) because it could interfere with your digital gauge as well as your fuel pump. (causing your temporary no starts) Oh also, if it is a ground problem you can replace the fuel pump all day and it's not going to help. New pump or old... no ground, no pump. I'm just saying.
Wish I could help. Hopefully someone who knows more will kick in here.