LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Where does the HVAC vacuum hose go?

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Old Jul 23, 2004 | 07:35 PM
  #1  
Loadre's Avatar
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From: Kingsport, TN
Where does the HVAC vacuum hose go?

I know where it attaches on the intake but then it gets bundled up with a ton of wires and I can't see where it goes to. I think it may be the culprit of my vacuum leak.
Old Jul 23, 2004 | 09:19 PM
  #2  
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Re: Where does the HVAC vacuum hose go?

It goes to a vacuum tank that is next to the coolant reservoir, underneth the car on the front passanger side.
Old Jul 23, 2004 | 10:02 PM
  #3  
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Re: Where does the HVAC vacuum hose go?

It goes to this check valve. It frequently gets broken.

Last edited by shoebox; Jul 23, 2004 at 10:04 PM.
Old Jul 23, 2004 | 11:41 PM
  #4  
Loadre's Avatar
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Re: Where does the HVAC vacuum hose go?

Thanks a ton. Will check it out tomorrow. I hope it is my culprit.
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