power trouble
 

So my 93 ranger xt seems to be having issues starting. When i turn the key it will act like i have a dead battery, and i then loose power to everything that is not wired directly to the battery. The current solution i have found is to open the hood and slap the power distrobution box and i will then have all power back and it will start. What do i need to do to fix this? Is it just getting a new power distrobution box? if so where can i find one?
Thank you.
I have also checked all the wires and connectors underneath the box and they are all good.

check the grounds first

Wirelessly posted

Check grounds and the area around power distribution box

i have checked the grounds, all wires leading in and out, the bottoms of all the fuses and relays in the box, and it all checks out. i even wiggled each wire individually and was unable to recreate lossing power. i'm at a loss for what else to do.