ground issue

This is not like every other bad trailer ground wire causing issues post, so please read this if you have any knowledge about this topic. I've posted about this before but to no avail. I've messed with it for a few months here and there but I'm coming back here to look for any extra advice. I...

I Daily drive my '94 4.0 4x4 with 165k, started up and drove perfectly all day Thursday, and Friday, parked it at work, outside temperature dropped from 45-30 Fahrenheit before I went to leave Friday afternoon and it wouldn't start without holding at 1000-2000rpm until warm, coolant temp gauge...