The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevy/GMC Suburbans & Panels Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-26-2012, 05:10 PM   #1
nate_g_2003
Registered User
 
nate_g_2003's Avatar
 
Join Date: Jun 2011
Location: Gregory, TX
Posts: 413
Vacuum Hose help

Hey guys. Working on my '72 'Burb, with front and rear AC.

Got a vacuum hose that isn't hooked up to anything, and I'm not sure where it is supposed to be hooked up to.

See the picture. The hose with the red arrow goes to the vac ball/tank assembly on the other side of the housing, close to the engine/air cleaner.

The hose with the green arrow loops to the actuator thing (where the arrow is pointing).

The hose with the yellow arrow doesn't hook to anything. Any ideas as to what it is supposed to be hooked up to?
Attached Images
 
__________________
-Nathan-
1972 GMC K2500 Suburban "The Project"
2013 GMC Sierra 1500 SLT Z71 "The Daily Driver"
2005 Ford F150 Lariat SCrew 2WD "The Daily Driver" SOLD
1995 GMC Sierra C1500 SLE "The Daily Driver"SOLD
2003 Ford Ranger Edge 2DSC 2WD Flareside "The Daily Driver/Project"SOLD
nate_g_2003 is offline   Reply With Quote
Old 07-27-2012, 08:59 AM   #2
nate_g_2003
Registered User
 
nate_g_2003's Avatar
 
Join Date: Jun 2011
Location: Gregory, TX
Posts: 413
Re: Vacuum Hose help

Okay, I actually got this wrong in my picture. The red hose does NOT go to the vac ball. It goes through a grommet on the firewall.
__________________
-Nathan-
1972 GMC K2500 Suburban "The Project"
2013 GMC Sierra 1500 SLT Z71 "The Daily Driver"
2005 Ford F150 Lariat SCrew 2WD "The Daily Driver" SOLD
1995 GMC Sierra C1500 SLE "The Daily Driver"SOLD
2003 Ford Ranger Edge 2DSC 2WD Flareside "The Daily Driver/Project"SOLD
nate_g_2003 is offline   Reply With Quote
Old 07-27-2012, 11:40 AM   #3
IAFF2407
Registered User
 
IAFF2407's Avatar
 
Join Date: Dec 2005
Location: White Rock Canada
Posts: 865
Re: Vacuum Hose help

hard to see with that pic. could it be the windshield washer fluid to spray hose(s). the line through the fire wall probably hooks up to the washer pump mounted inside.

Al.
__________________
1972 GMC Sierra
1972 GMC Super Custom Suburban
IAFF2407 is offline   Reply With Quote
Old 07-27-2012, 04:06 PM   #4
nate_g_2003
Registered User
 
nate_g_2003's Avatar
 
Join Date: Jun 2011
Location: Gregory, TX
Posts: 413
Re: Vacuum Hose help

No, my washer pump and related hoses are on the driver side. This is on the passenger side, around all the A/C stuff.
__________________
-Nathan-
1972 GMC K2500 Suburban "The Project"
2013 GMC Sierra 1500 SLT Z71 "The Daily Driver"
2005 Ford F150 Lariat SCrew 2WD "The Daily Driver" SOLD
1995 GMC Sierra C1500 SLE "The Daily Driver"SOLD
2003 Ford Ranger Edge 2DSC 2WD Flareside "The Daily Driver/Project"SOLD
nate_g_2003 is offline   Reply With Quote
Old 07-29-2012, 09:57 PM   #5
70cst
Senior Member
 
70cst's Avatar
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,360
Re: Vacuum Hose help

ttt
__________________
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!
70cst is offline   Reply With Quote
Old 07-30-2012, 01:34 AM   #6
70GreenBurb
Registered User
 
70GreenBurb's Avatar
 
Join Date: Jun 2012
Location: Woodland, CA
Posts: 29
Re: Vacuum Hose help

I just added factory Four Seasons Air to my 70 Burb. On mine, the Vac hose from the tank came through the firewall and attached to the passenger side nipple of the vacuum valve on the controls. A vacuum hose went from the drivers side nipple of the control valve to a Tee which with one branch going back through the firewall to the cowl vent actuator for the air shutoff valve and the other going to the recirculating valve actuator for the kick panel vent. Not sure how the setup changes with front and rear air.
__________________
1970 Custom 10 Suburban- 350/700R4 w/3.07 Gears
1961 Shasta trailer
2001 Tacoma Reg Cab (Mini Taco)
Photobucket pictures- http://m1254.photobucket.com/albumlist/vintage6170
70GreenBurb is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:32 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com