well we put in a new orifice tube evacted the system filled her and now blows nothing but hot air . gauges read 35 low and 190 high which I believe is close to normal . could there be something going on with the doors that control the air flow . I don't know how to ck to see whats going on . any help would be awesome thanx

 

Crush the hot-side heater hose (the one that comes off of the intake manifold) and see if it changes. Yes it could be something with the blend doors.

 

I have some what of the same problem but not sure where to start. My car , when I bought it had no AC compressor or AC lines. I bought all new AC stuff and had it installed today. Now for starters my blower motor won't work on high. I've replaced the motor and resistor so I assume its the switch. As for the other problem. My air only comes out at the defroster vents no matter where the controls are set. Anyone with some helpful input would be greatly appreciated.

 

The vents default to defrost when there's a vacuum leak. Happy hunting!
Often the valve behind the controller is what's leaking also if you can't find a leak anywhere else

 

Blower motor problem:

https://www.thirdgen.org/forums/elec...orking.html#31
https://www.thirdgen.org/forums/elec...orking.html#33
https://www.thirdgen.org/forums/elec...orking.html#38

Amazing how prevalent this problem is.