Thank you Tomj8,
The AC does not work at all. By the CCM display, are you referring to where one reads the temperature, and climate control settings on the dashboard? That display is working fine. Also, the air blows forcefully, but the temp does not change. To answer your question, yes, when the conduit was in place the heat worked fine. However, I thought I should replace the HCV and used an ACDELCO replacement. I believe this is the part here: http://www.rockauto.com/catalog/raframecat...Rc1387032k84430
Now the heat does not work at all. In Chicago, we are going through a heat wave, so I am more worried about the AC, which does not work at all. If I put the conduit back in place, will the AC work?