Complete electrical shutdown

[Stoic Guardian]

I'm honestly not sure where I should ask this, but parked my truck last night after a 30 min commute home with no issues, this morning, issues. 02, 4.0, 4x4, auto.

I turn the key to run and everything works fine, same in accessory mode. I turn it to start, it clicks like something should happen, but then everything stops. No lights, door locks, radio, blower, anything. Even if I go back to accessory, or take the key out and try again. After some time, everything cones back on, all at once, like noting happened.

The battery saver relay was going nuts too.

Ideas?

 

[RobbieD]

First thing to check, and rule out, is the battery cable ends. Both should be tight, and no corrosion especially in the contacting areas. Make sure that the cable going into the ends are not split, "puffy" or have green corrosion peeking through the insulation. The issue you describe is a classic one for bad battery cables, so check those first.