I am wondering if this may be a 'common' problem or at least some here may have experienced. ?

I have NO power to my sending unit ( in-tank lift pump assembly). IT appears it has been going slowly not all at once.
I have tried EVERY fuse and switched around the relays with one I know is good. Wierd.

It appears the 4-wire plug coming out of sending unit goes down to same cluster of wires that feeds the rear of truck and all those work, just not the sending unit.

Any thoughts?
This is really pissing me off.
For the time being, I wired directly from the fuel pump to my aux. battery. Just can't tell how much fuel I have thats it. lol