Ok, I have a1995 Blazer w/ air. We did some work under the hood (new cap, wires) and now the HVAC controls don't work. I investigated and found the vac hose to be off. I've made the connection on the motor side.I know the HVAC connection is somewhere on the firewall, but I will dogged if I can find it. Can anyone provide a location or picture of same? The wife is about ready to shoot me. Thanks. Dan

 

So you made the connection onto the motor? Then if the motor end is connected take the other end and follow it around were it will reach and that will help you find the other connection point!! Hope this helps even though I don't have a picture at the moment. The main area to look is on the passenger side firewall to start with!!

 

Thank you. Was not on firewall. It connects to a barb on a line disappearing above the brake booster. Thanks. Dan