Re-reading your first post - every time you've worked on it, it got better for a while then deteriorated again. Is there a bad connection somewhere that when you work on the truck you somehow manage to make more complete and thereafter it loses its ability to conduct until messed with again? Or a heat path?
That’s kinda my current running theory. Lots of people have told me that it’s a bad ground somewhere which is why it’s not a consistent problem. I checked the block ground straps and they seem fine.
does anyone know of any specific grounds or ground posts that could cause the issue that I should check?