Well I found the problem. I started tracing vacuum hoses under the passenger side dash. (Not much you can actually see) They seemed fine, and couldn't hear any air noise during operation or starting the car.
I did however see a white plastic lever that was not connected to anything. Near it was a plastic pivot arm that had a "Y" shaped cutout in the middle not connected to anything either. These two fit together and apparently shift the vent door for the hot air. I now have hot air all around. The overall construction of how these two plastic pieces mesh together does not seem very good and I can forsee this happening again.
Thanks for you help, without your input I never would have looked under the dash. I had some "car guys" in another forum tell me it was probably air pockets in the heater core and that I should purge the air out and if that didn't work change the thermostat. Didn't sound right to me so I came here.
Wednesday, January 6th, 2010 AT 9:36 PM