sudden electrical failure

[drowe44]

I was pushing snow up a hill in the dark the other morning and suddenly the truck just stopped running and went dark. Total electrical failure. Lights out, no fuel pump, no starter, no gauges, nothing. I opened the battery box to check connections ( I recently replaced a battery) and didn't see anything wrong, but just as suddenly the electrical system came back on. Has anyone else seen this? Is there a main breaker somewhere that could be getting ready to fail?

Thanks

[Murf]

Loose post internally ? Loose post connection ? Possible plate connector problem? Breakers are behind the dash.

[Cal_Gary]

Loose or corroded ground wire?
This happened to me years ago (but never came back on): the negative cable fell out of the battery post clamp.
Gary

[PoW]

There is no 'main breaker', just those for lighting, ignition circuit, horn, and accessories (rare). Later trucks had the lighting breaker internal to the light switch.

PoW