No Dash lites

[b1v3r]

85 C10 Scottsdale, BASIC Truck . Nothing on it with a 4.3 V6. Lights on the heater control lite up, but that is all. Fuses are ok. There is not an interior lite, but I intend to install one eventually. Brite lite indicator is on when low beam are on, but go off when I hit the high beam. Turn indicators are sometimes dimly on. Fuel gauge sometimes works and sometimes not. All exterior lites work including reverse and turn indicators, horn and wipers. Truck sat for 2 years but we did a lot of work to get it running very nice. All the electrical stuff just started happening. I have been driving the truck for about a year, and it runs very nice. Also cannot get Power steering pump loose to tighten belt. Bolts come loose, but it seems to be hung on something. Lights are very urgent. Thanx. Bill