Vacuum line for heater blend - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ls1nova71 · 11-22-2013, 02:42 PM

Are you wanting to know where to get a vacuum source to run the HVAC blend doors? If you have a truck intake, on the passenger side about the middle is a fitting that usually has a break off tab on it. break the little tab off and a hose will push on and has little pieces on top and bottom that hold the hose tightly in place. If you have a car intake, it's at the back of the intake by the brake booster fitting.

solidaxel · 11-22-2013, 10:55 PM

Quote:

Originally Posted by ls1nova71

Are you wanting to know where to get a vacuum source to run the HVAC blend doors? If you have a truck intake, on the passenger side about the middle is a fitting that usually has a break off tab on it. break the little tab off and a hose will push on and has little pieces on top and bottom that hold the hose tightly in place. If you have a car intake, it's at the back of the intake by the brake booster fitting.

That was one of the neatest tricks you folks told me about, works great, thanks !!!!

11-22-2013, 02:42 PM	#1
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: Vacuum line for heater blend Are you wanting to know where to get a vacuum source to run the HVAC blend doors? If you have a truck intake, on the passenger side about the middle is a fitting that usually has a break off tab on it. break the little tab off and a hose will push on and has little pieces on top and bottom that hold the hose tightly in place. If you have a car intake, it's at the back of the intake by the brake booster fitting. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html



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