We got our 86 Brat a few weeks ago and the the previous owner said the climate control didnt work, pulled it out and and gave us a junkyard replacement he hadnt installed.

 

His replacement has a few cut off vacuum hoses, but I cant see any vacuum hoses in the dash.  In addition, I read in another thread that someone said the ea81 didnt use vacuum for heat/defrost switches.

 

Can someone confirm?  

 

If so, would this make my replacement unit a no-go in my Brat?

 

Thanks for any and all help!

 

 

The mode select has vacuum operated switch. Pretty sure its to control the intake door (for fresh air or recirculate). Thats the only actuator coming to mind. Its located on the far passenger side tucked under the dash and attached to the blower motor case. Cant say it was still there for the '86 model tho.

Thanks.  I played around with the control and the only action that hits the vacuum switch is if A/C is set to MAX.

 

Guess, I'll have to poke around and see if I can find the tubes in the dash.