HVAC vacuum schematic - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CrashBob · 07-29-2009, 08:59 PM

Hey,

Does anyone have or know where I can find an HVAC vacuum schematic for my '67 C20?

Thanks

CrashBob

**john** · 07-29-2009, 09:05 PM

Here you go.

JimKshortstep4x4 · 07-30-2009, 06:55 AM

I believe your AC in the 67 will have the three port vacuum switch so here is the schematic for the three port system.

Jim

**70cst** · 07-30-2009, 09:41 AM

Now that is service.

CrashBob · 07-30-2009, 05:16 PM

Quote:

Originally Posted by 70cst

Now that is service.

Man, you got THAT right!! This board and it's members are the greatest!

Thanks for the help

CrashBob

07-29-2009, 08:59 PM	#1
CrashBob Registered User Join Date: Jun 2004 Location: Utica Nebraska Posts: 244	HVAC vacuum schematic Hey, Does anyone have or know where I can find an HVAC vacuum schematic for my '67 C20? Thanks CrashBob __________________ "Life is all about ass. You're either covering it,laughing it off, kicking it, kissing it, busting it or trying to get a piece of it.

07-29-2009, 09:05 PM	#2
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: HVAC vacuum schematic Here you go. Attached Images __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

07-30-2009, 06:55 AM	#3
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: HVAC vacuum schematic I believe your AC in the 67 will have the three port vacuum switch so here is the schematic for the three port system. Jim Attached Images __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

07-30-2009, 09:41 AM	#4
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,365	Re: HVAC vacuum schematic Now that is service. __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!



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