Quote: Originally Posted by
J's89 
Reviving an old thread, hoping for a reply. Do you guys remember how the temperature on your A/C controls is operated? Is it vacuum, cable, electric etc.? I'm doing a custom dash in my 89, and I want to get rid of this manual cable, partially so I can control the A/C with the computer later. If you guys can help, I'll know what years to look for in the bone yard.
I believe it's vacuum. My AC wouldn't work for the longest time, and then I realized one of those little hoses was unplugged. I plugged it back in and it worked again. It was a vacuum hose.