A 1992 K2500 Silverado popped up on Craigslist on Friday for $900. We bought it. Kevin and I drove home in it, with only the headlights working — no running lights, no dash lights. We got pulled over just before the turnoff to Isleta Pueblo and were let off with a warning, since I had all the paperwork and told the cop I had just bought the truck.
I got the lights working again — it appears the headlight switch is bad or going bad. It has high resistance. I cleaned it as best I could and will see if that fixes it.
Also, the truck has an idling issue / rich running issue. That could be any number of sensors that need to be replaced, or it could be bad grounds.