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Vacuum leak?

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Old Jun 6, 2002 | 09:26 PM
  #1  
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Default Vacuum leak?

Where do the vacuum tubes on the back of the intake go? I know where the big one goes but what about the small one? I saw where someone posted a diagram somewhere that the air pump system had a vacuum tube on it that went to the back of the intake. So If I took off my air system would that cause an vacuum leak? I don't really think this is correct but I want to make sure. I have LS1 edit so I could just take off the air system delete the codes and be fine right? Thanks for any information.
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Old Jun 7, 2002 | 06:22 PM
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Default Re: Vacuum leak?

My AIR systems vacuum line was easily plug with a small screw. But.. after looking at it.. I'm not sure it needed it. That tube goes into a small sensor.. didn't appear to go to the intake.
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Old Jun 7, 2002 | 06:39 PM
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Default Re: Vacuum leak?

It must be different on yours than mine. I have a 99 and I can't find where there are any vacuum tubes coming off my air pump system. I just read where people were posting about the vacuum tubes and I could never find one. Would I know it if I didn't plug this vacuum tube?
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Old Jun 7, 2002 | 06:55 PM
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Default Re: Vacuum leak?

my 2001 had about 2" round "checkvalve" mounted next to the fuel rail. The vacuum tube in question mounted to the top of it.
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Old Jun 7, 2002 | 07:16 PM
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Default Re: Vacuum leak?

So you had three checkvalves? Two that go to the headers and the other one. If this is correct I don't have the same setup and that's what I needed to know.
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