My bird's a/c is only blowing out the defrost section and want change when i switch it to heat and back to max a/c and i'm thinking maybe the switch is messed up or the little flap got stuck but i'm not sure so i'm wanting some advice about what to do.
You have no vacuum to the HVAC system. It defaults to defrost.
Is it a simple fix or should i get a "Trained Professional" to do it?
Look under your hood on the pass side firewall right next to where the heater hoses are connected to the heater core. There is a small vacuum line that leads into the car there that sometimes gets broken,cracked or disconnected.
Thanks for the help i got it to work again.
Does anyone have pictures of where this line into the car originates and terminates? I have had the same problem for a while and I would like to get the vents working again.