ok i am not sure if this is the right stop for this but anyways in my 92 camaro in the heater controls the hot and cold switch on the bottom part of the controller there that little valve on the back that has 2 vacuum lines on it does any one know what that thing is called or where to get a new one because when you turn it alittle off cold it has a vacuum leak just in the valve

 

not trying to support Rock Auto per say but appears they have the two different valves you might need:

ACDELCO Part # 14056648 VALVE,HTR & A/C CONT & CRCONT VAC CHK w/CRCONT(K34); 4.0MM ID HOSE-3 PORTS-CODE 6648,3271 [Wholesaler Closeout -- 30 Day Warranty] (Only 1 Remaining)

FOUR SEASONS Part # 74805 W/ AC

 

no those arent it thanks though i will try and get a pic up later

 

Have complete HVAC control units in great shape, but not sure if I have any spare parts. Will check tomorrow. Need a whole unit?

 

so thats the part i need sorry i didnt get it up yesterday i was out of town

 

Hi, I can take that part off of a real clean HVAC control unit I've got if that's all you want. PM or email me your email address for pics or other info