AC Vacuum Problem
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Joined: Jan 2003
Posts: 78
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From: Austin TX
AC Vacuum Problem
1982 Corvette
350 W/ Edelbrock Carb
I am having a problem with the AC system. When I move the controls from defrost to Vent, etc, nothing changes. I checked and I am not getting any vacuum to the system. I have looked in the Haynes manual that I have for the vette, but it does not show anything on this subject. Does anyone know where the vacuum needs to connect to? I have a vacuum source, but don’t know where to connect it. Any advice would be helpful.
TIA,
CDM
350 W/ Edelbrock Carb
I am having a problem with the AC system. When I move the controls from defrost to Vent, etc, nothing changes. I checked and I am not getting any vacuum to the system. I have looked in the Haynes manual that I have for the vette, but it does not show anything on this subject. Does anyone know where the vacuum needs to connect to? I have a vacuum source, but don’t know where to connect it. Any advice would be helpful.
TIA,
CDM
Thread Starter
Advanced
Joined: Jan 2003
Posts: 78
Likes: 0
From: Austin TX
Re: AC Vacuum Problem (Enad)
Yes. I can not find where the vacuum that connects to the console also connects to the engine. If it does. It may connect somewhere else - the compressor. I am very new to the AC system, so I may be way off. I just know that there when I change from defrost to vent or anything, the ducting door does not change at all. It is always in the defrost position.
Let me know if I need to give more info, and I hope what I wrote made since. Sometimes my thinking is different than most. :)
Thanks
[Modified by 82Powerhouse, 5:10 PM 4/12/2004]
Let me know if I need to give more info, and I hope what I wrote made since. Sometimes my thinking is different than most. :)
Thanks
[Modified by 82Powerhouse, 5:10 PM 4/12/2004]
Safety Car
Joined: Oct 1999
Posts: 4,101
Likes: 10
From: NorCal
Re: AC Vacuum Problem (82Powerhouse)
It sounds like the supply hose is disconnected. Look at the rear end of the manifold (is it still a crossfire?) and the supply hose is bundled in with the wiring, I believe. I'm having a senior moment here and can't remember exactly. Basically, your looking for a real small vacuum hose (possibly plastic) that has broken or fallen off the supply fitting. Should make it run better without that leak, too!
Hans
Hans
