A/C duct routing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ssjones · 02-09-2006, 04:59 PM

Does anyone have a diagram for a 72 A/C duct routing?

Thanks.

boundstaffpress · 02-09-2006, 05:11 PM

Does this help?

ssjones · 02-09-2006, 05:21 PM

Perfect! Thanks.

ssjones · 02-10-2006, 02:05 PM

Okay. I have all the duct hose hooked up and noticed on the a/c~heater control there is a vacuum switch connected to one of the levers. Can anyone tell me what that is for and how it should be connected? I think it is for fresh air outside .vs. inside air.
Any help is appreciated.
Thanks.....

boundstaffpress · 02-10-2006, 02:13 PM

Should connect to a vacuum valve on your fender or intake manifold that allows water to flow through your heater core when you want it to, and not when the ac is on.

**john** · 02-10-2006, 03:03 PM

vacuum Diagram. John

02-09-2006, 04:59 PM	#1
ssjones Registered User Join Date: Mar 2005 Location: Scottsdale, Arizona Posts: 98	A/C duct routing Does anyone have a diagram for a 72 A/C duct routing? Thanks. __________________ 1972 Chevy Cheyenne 20 1979 Chevy Camaro 2007 Chevy Avalanche 2005 Mini Cooper

02-09-2006, 05:11 PM	#2
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: A/C duct routing Does this help? __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis

02-09-2006, 05:21 PM	#3
ssjones Registered User Join Date: Mar 2005 Location: Scottsdale, Arizona Posts: 98	Re: A/C duct routing Perfect! Thanks. __________________ 1972 Chevy Cheyenne 20 1979 Chevy Camaro 2007 Chevy Avalanche 2005 Mini Cooper

02-10-2006, 02:05 PM	#4
ssjones Registered User Join Date: Mar 2005 Location: Scottsdale, Arizona Posts: 98	Re: A/C duct routing Okay. I have all the duct hose hooked up and noticed on the a/c~heater control there is a vacuum switch connected to one of the levers. Can anyone tell me what that is for and how it should be connected? I think it is for fresh air outside .vs. inside air. Any help is appreciated. Thanks..... __________________ 1972 Chevy Cheyenne 20 1979 Chevy Camaro 2007 Chevy Avalanche 2005 Mini Cooper

02-10-2006, 02:13 PM	#5
boundstaffpress Jamie Hyneman is my twin Join Date: Nov 2005 Location: La Junta, Colorado Posts: 705	Re: A/C duct routing Should connect to a vacuum valve on your fender or intake manifold that allows water to flow through your heater core when you want it to, and not when the ac is on. __________________ Justin SOLD 1967 K10 Fleetside, 283, Front and Rear Posi SOLD Color Wiring Diagrams Now in High Resolution V8 and Cab and Cab and Chassis

02-10-2006, 03:03 PM	#6
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: A/C duct routing vacuum Diagram. John Attached Images __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

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