Check for a vacuum leak either under the hood or under dash
Check for a bad vacuum actuator under dash
Could be a bad selector switch
why my floor air comes on when the setting is at panel air on 2004 Chevy blazer
What causes heat to only come out of the defrost and vent but not the floor of a 1995 S10 Blazer?
2003 crown vic air conditioning vent dont blow
why dont bottom vent doors not open on 2001 gmcsonoma
Blower circuit board is shot
check the freon and cabin air filter
The thermostat could be stuck open.
Control problem, blend door not working are the places to start
straight from the vent should be around 47 degrees
that heppend to my car i had to finaly replace the heater blower so it could be the same thing
It's somewhat cold. It's just very little cold air coming out. Can't hear the vent blow the air as well.
the heater core was stopped up just flushed it out ok now