[Wgesnerjr]

I had a caprice wagon that did the same thing. when to leave a friends house one night and it went rrr-rrr than died. no start, power anywhere.

Had it towed home and as it was unloaded, power/lights came back on. once fully down, it started right up again.

Took me a while but found out it was a short inside the battery. replaced with a new optima and all was good after then.