hvac

[dee123]

Does anyone know if the non a/c heater box under the dash is different than a/c heater box? I think they are but not sure. And if i use an a/c box, will the non a/c control and cables work?

 

[89Suburban]

Absoloutely different.

What are you trying to do?

 

[dee123]

have a complete truck and a replacement cab. both are a/c equipped and i want to completely remove the components for the system. are the rest of the vents the same? figured heater box was different.

 

[89Suburban]

I got some pics of mine tore apart if you wanna look at the pieces:

http://www.gmsquarebody.com/forum/showthread.php?t=1559

That is tha A/C system in mine, I am removing most of the A/C components out of mine.


There is also some pics and diagrams in this thread:

http://www.gmsquarebody.com/forum/showthread.php?p=55233#post55233

Tha controls are very different between A/C and non A/C, I was wondering if I could swap non A/C controls into mine, I am still searching for info on that.

 

[dee123]

got more info. heater box, blower motor housing, controls, cables and vents are different as well as the dash. might leave mine alone and do evap. core bypass plate on firewall.

 

[dee123]

saw link to other thread. thanks

 

[89Suburban]

got more info. heater box, blower motor housing, controls, cables and vents are different as well as the dash. might leave mine alone and do evap. core bypass plate on firewall.

I hacked the two feed and return lines off my evap core/housing. I am hoping to remove most of that housing and just have the heater blower housing so I can clean up the firewall a bit at some point. I need to look in the scrap yard this winter for some non a/c parts.

 

[GreaseDog]

if you're going to be looking in the winter, i have a complete heater system from my 87 (the "87" pic in the other thread is the control head for that setup, still attached to the interior box). i may be removing the body from my 80, and swapping to a 93 body, so it would be useless to me... it'd save you a trip to the junkyard...