I also have the same problem as twophat49 with his 1993 Chev. Astro Van. My Van had been sitting foe awhile and I would start and run it for awhile. The was dead and I put in a new battery and saw the big 100amp fuse against the Firewall. It had blown. I replaced it and the Van started. I decided to check all the lights/turn signals, but the Headlights won’t turn on. Any Ideas?? Thanks.
You need to check all the fuses that pertain to exterior lighting
That would be my advice, before getting in too deep
And by the way . . . we have no idea what problem(s) “twophat49” had with his 1993 Astro