i need to know where the vacume hose goes that is concected to the assembly behind the controls if you take the control panel off...its the one single hose by itself aside from the 5 or 6 hoses that are together into a plastic conector...i can not find where this hose is supposed to plug into...it must have gotten disconected when i took the dash down to do the heater core...my problem right now is only my defrost vents and my floor vents blow anything out..any other seting will still blow through the defroster vent..could this be due to that vacume line being disconected? i hope so, so its an easy fix..