Heater coil has been replaced as well as heater hoses and radiator fan runs but blows cold air
Chevrolet Q&AAsk Your Question
1991 Chevrolet S10 Question: No heat on S10 pickup
Answer #1ebans777 November 11, 2012, 18:28Master
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?
Answer #2ziptie12 November 11, 2012, 20:14Master
heater control valve broken? Temp door working properly inside?
Greg's Orange Auto (13401 Answers) , Orange, CA - (714) 361-9386globalhelper November 12, 2012, 06:49Master
poss stuck open thermostat. start there