Where is the break switch on a 1995 chevy van

the heater control valve might be broken or plugged

brake light dont have relay only fuse brakes are hot at all times on gms. in goes from fuse to brake pedal switch to hazard turn signal switch then to brake lights. ck fuse if good go to pedal switch if good go to turn /hazard switch the turn signal hazard brake all use same wire to lamps.

Sounds like a charging problem. I would have the alternator and battery checked out. Most places do this for free. Places like auto zone or les schwab. Your fuses are located drivers side underneath steering wheel to the left.

It sounds like a bad fuel pump.

there is no relay power from control panel through pressure switchs to compressor

you either have bad brake pads or the bolts are loose that hold the front steering suspension on.

instrument lamp fuse. 10 amp labled INSTR LPS left side ,up under dash. if its good, the headlamp switch could be bad or the reostat for the lamps.

if you are leaking gear oil through the tire you need an axle shaft seal there is also a axle bearing there unless it is a full floating axle which means the axle has a flange on the wheel end that bolts on. if you go to the chevy dealership near you go to parts and they can print you out a break down of the axle according to your vin number on the van

Need a turn signal switch it is very common with the Lumina

http://cgi.ebay.com/ebaymotors/1995-Chevrolet-Chevy-Lumina-Owners-Manual_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2el1262QQcategoryZ6760QQihZ009QQitemZ190171395968

Here ya go.
Good luck
Dave E. (Illeagle)