Can't get hot air in any mode(defrost or heater). Hoses to heater box feel warm on firewall side. Could it be something simple as low on coolant? Temp control and heater/defroster appear to operating normal....any troubleshooting suggestions?

Thanks in advance

 

i'm sure u checked for a in line shut off valve? maybe clogged core.

 

This is a duplicate post, he got it working: https://camaroforums.com/forum/1st-g...n-62149/page2/