1991 Chevrolet S10 Q&A
1991 Chevrolet S10 Question: No heat on S10 pickup
if you replace the heater core already check the heater core hoses if its get hot or not maybe blocked, maybe just not working/hoses wrong connections, is your temp normal? is your thermostat new? - ebans777
heater control valve broken? Temp door working properly inside? - ziptie12
poss stuck open thermostat. start there - globalhelper
Defrost and Dash heat but wont come out at feet
I have no heat at all. used to work until I had a coolent flush a few months back
Can it be changed without pulling the motor?