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1995 GMC Yukon vacuum routing to heater valve

Tiny
YUKONREMS
  • MEMBER
  • 1995 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 215,000 MILES
I need to find the location fo the heater valve vacumm line.
Monday, November 3rd, 2008 AT 4:47 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic1_36.jpg


Heater and temperature is controlled by cable and not vacuum
what is it that you have a problem with

need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm
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Thursday, November 6th, 2008 AT 12:23 PM
Tiny
YUKONREMS
  • MEMBER
  • 6 POSTS
The heater valve IS vacuum actuated. It is a replacement for the same exact thing that was leaking. The in dash control is only electrical connections behind the dash. The control has rear barn door defroster and a/c.
I can not find the vacuum source to control the valve.

Thanks, Russ
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Thursday, November 6th, 2008 AT 6:57 PM

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