Okay everybody i've been trying to get the heat working in my car for some time, finally found the problem with the blower motor and got that to turn on.

NOW It only works on the AC side of the Controls and blows through the defroster. When i switch it to the [Economy] side the blower motor turns off and nothing happens.

I think i know for sure that the A/C Mode Selector Switch has a vacuum leak but will that still cause the blower motor to turn off when i switch it to the [Economy] side of the controls?

Even on AC side with the heat slider all the way to hot it still blows cold, what's going on here?