Where is my A/C heater blower motor resister located on my 1992 Chevrolet S10

The "squirrel cage" or blower fan is located on the fire wall behind the dash board on the passenger side. Your problem sounds like it could be a problem with the blower speed switch. I encounterd this same problem on a 2007 Z71. I simply swapped out the entire climate control unit from a doner truck.

1992 should be under hood on the black hvac box....psssenger side.......that's your problem!.......it will take about 8 minutes for a novice to swap!

Agree with #2 reply.

Were is the resister loketed