heater/vent prob

Everything works perfectly when i have ac on (to direct the air to come out of the vents)
Last night, i was freezing so when i turned the heater on DIRECTED TO ME , i CANNOT GET the air to blow from the center vents towards me .. once i go higher than 64 degree it wont come out, if i drop it below 63, it will come out and i cna direct the air to my face and feet and so forth.
what am i missing???
please help me.
Last edited by big_mike1979; Oct 18, 2009 at 06:19 PM.

is it the vaccumn line for the two front vents or what?
sorry im not an expert when it comes to this.
thank u.
but ENYCE284, but why when i use the ac, it works fine but not with heater????



at all and i just bought the car to two weeks ago
