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Joined: 18 Oct 2007

PostPosted: Thu Oct 18, 2007 1:29 pm    Post subject: HVAC Hell Reply with quote

Hello everyone, I have a 1990 Jeep Cherokee which I'm currently in the process of building up. I haven't actually started the building up part, just the repairing problems bit. I have everything nailed down except for a couple problems. One being an oil leak, another being an emissions line break, and the final one being really friggin annoying. I am unable to get my HVAC system to switch from the defrost vent to anywhere else in the car. It won't go to the floor and it won't go to the vents. I'm also not entirely sure how to go about repairing this problem. I did test the mixing doors that are responsible for the switching process, and they work (operating the door levers with my hands). I've narrowed it down to a problem in the vacuum actuators or the lines or the vacuum supply but I can't find a diagram anywhere to assist me in tracking it down. Would anyone be willing to point me in the right direction or provide me with a write-up link so I can get this taken care of? Thanks in advance.

Green Boy
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