Vacuum Line Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TheApocalyptican · 12-23-2011, 07:05 PM

I have a vacuum line coming out of the firewall near the airbox, that has never been connected since I've owned the truck. It is a solid black line that goes into the same place as the antenna wire, and the grey/black a/c vac line. I currently have the line plugged, as it is under vacuum when running(Ok, I take that back....I thought it had vacuum, but haven't messed with it for a while, and just checked, and it didn't have any vac). Pics:

Under the dash, above the heater box:

At the firewall next to the airbox:

Any ideas where this is supposed to go?

12-23-2011, 07:05 PM	#1
TheApocalyptican Registered User Join Date: Jun 2010 Location: Las Vegas, Nv Posts: 312	Vacuum Line Help I have a vacuum line coming out of the firewall near the airbox, that has never been connected since I've owned the truck. It is a solid black line that goes into the same place as the antenna wire, and the grey/black a/c vac line. I currently have the line plugged, as it is under vacuum when running(Ok, I take that back....I thought it had vacuum, but haven't messed with it for a while, and just checked, and it didn't have any vac). Pics: Under the dash, above the heater box: At the firewall next to the airbox: Any ideas where this is supposed to go? __________________ 1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s Last edited by TheApocalyptican; 12-23-2011 at 07:13 PM.



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