First off hello to everyone here. Long time Acura fan and owner as well as MoPars. Got a question on my 1990 Acura Integra. First problem with it in 13 years except for numerous mufflers.

I want to see if any of you have had this same problem. The HVAC system. The center console unit that has the different buttons to select where you want the heat or A/C to blow is non functional. It is constantly blowing out the vents. Also the fan oscialltes from high to low like it cant figure out if it wants to be in recirculated air or fresh air. Recirculated air blows stronger and colder. Fresh air doesnt blow as hard. It goes back and forth. I can hear a noise down by the heater core like the doors are trying to open and shut for freah air or recirculated air. Thanks Guys