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Couple of questions

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Old 08-31-2010 | 02:51 PM
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Originally Posted by jayscoobs
Im having trouble finding which line is the VFAD line. Here is a pic on the side of the throttle body.
locate the one way valve (circled) and follow the line to the bottom of the upper intake manifold.
Remove the line and cap the nipple
Attached Thumbnails Couple of questions-mail.jpg  
Old 08-31-2010 | 02:58 PM
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What do I cap it with? Sorry for all the questions, im not really mechanically inclined. The diagram u showed me says the VFAD is a different line than the check valve line

Last edited by jayscoobs; 08-31-2010 at 03:08 PM.
Old 08-31-2010 | 03:07 PM
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Originally Posted by jayscoobs
What do I cap it with? Sorry for all the questions, im not really mechanically inclined.
Go to an auto parts store and purchase a vacuum cap ... 5/32" I think. Take in a piece of the hose.
Or buy an assortment package for a few dollars

BTW, work the hose off gently and don't break the plastic nipple off!!

Last edited by DarkBrew; 08-31-2010 at 03:09 PM.
Old 08-31-2010 | 03:18 PM
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Where I have the open line that should be same size of where I'm going to plug it right? I'm just going to show them that line
Old 08-31-2010 | 03:25 PM
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Yes, it's all the same size
Old 08-31-2010 | 03:29 PM
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One last question, is there a way to tell if I don't have a vfad without taking off my front bumper?
Old 08-31-2010 | 03:51 PM
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Originally Posted by jayscoobs
One last question, is there a way to tell if I don't have a vfad without taking off my front bumper?
Yes.
You pull out your airbox as if you're doing a filter change. You need to do this to remove all the VFAD vacuum lines anyway. Hint, easier if you pull off the accordion tube first. Also you might want to disconnect the MAF connector.
Look through the front bulkhead where the airbox intake penetrates and the VFAD will be sitting right there.
BTW, Mine is still in place but the valve is jammed open
Old 08-31-2010 | 04:08 PM
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How did you jam the valve open? Okay so what I need to do is pull off vacuum line connected to the UIM, cap the nipple on the UIM, remove VFAD vacuum lines (what about everything these lines are connected to? the chamber and selenoid?), Check to see if I still have a VFAD (How do I make it stuck open like you did if I still have?)

Thanks for all the help, I pay attention to every little detail before I tackle something. Ill be doing this when I do my coil change and clean TB and MAF, pointless to take everything apart 3 times a week.
Old 08-31-2010 | 04:22 PM
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Originally Posted by jayscoobs
How did you jam the valve open? Okay so what I need to do is pull off vacuum line connected to the UIM, cap the nipple on the UIM, remove VFAD vacuum lines (what about everything these lines are connected to? the chamber and selenoid?), Check to see if I still have a VFAD (How do I make it stuck open like you did if I still have?)

Thanks for all the help, I pay attention to every little detail before I tackle something. Ill be doing this when I do my coil change and clean TB and MAF, pointless to take everything apart 3 times a week.
My valve is already jammed... Maybe to do with hitting a coyote and getting my car repaired... I'm going to put on the RB ram air duct.
Everything else vacuum related can come out. You can pull the duct next time you have the nose off.... Get some Racing Beat screens for the oil coolers and AC condenser.
I seem to be taking my car apart at least once a week this summer so far....
Old 08-31-2010 | 04:43 PM
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yeah i was planning to get some screens in the near future. So that entire VFAD assembly comes out? with all the vacuum lines? If I do have it still I should just take it out right?
Old 08-31-2010 | 05:34 PM
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What makes you think it's gone?
You could also pull up the air diverter and have a look under it.
Old 08-31-2010 | 05:34 PM
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You don't need to remove the VFAD at all. Once you disconnect the vacuum line the VFAD will open as the line actually closes the VFAD flap.
Old 08-31-2010 | 05:54 PM
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Oh okay I didnt understand how it works, by removing this line I thought that it would stay close. Thanks for the clarification. But the solenoid and vacuum chamber come out correct?
Old 08-31-2010 | 05:57 PM
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Don't need to unless you want to save the 1 lb of weight.
Old 08-31-2010 | 05:59 PM
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Itll probably look weird to have a line just sitting there not connected to anything or serving a purpose, matters well save 1 lb lol.

Last edited by jayscoobs; 08-31-2010 at 06:08 PM.
Old 08-31-2010 | 06:08 PM
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What is this for? It doesnt seem like it is needed.
Attached Thumbnails Couple of questions-edit.jpg  
Old 08-31-2010 | 06:46 PM
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Originally Posted by jayscoobs
What is this for? It doesnt seem like it is needed.
That is a resonance chamber. Don't remove it
Old 08-31-2010 | 06:52 PM
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Originally Posted by DarkBrew
That is a resonance chamber. Don't remove it
Oh okay. so just remove everything else that was said and im set I guess lol.
Old 08-31-2010 | 07:00 PM
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don't pull off any other vacuum hoses

the rest are really important
Old 08-31-2010 | 07:13 PM
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So what comes off and what stays on?
Old 08-31-2010 | 07:17 PM
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So why is he removing/disabling the VFAD?
Damn it... I have to go back and read.
But all that needs to be removed is the line between the VFAD nipple (behind the throttle body) and the vacuum chamber (the cylinder clipped to the stock intake box).
And removing this is only to prevent the dangling hose from getting caught in moving components.
Then you cap the nipple with a vacuum cap, which Autozone sells a variety pack for a couple bucks.

And as DeViLbOi mentioned... this system uses vacuum to close the valve, so it'll stay open at all times.
Old 08-31-2010 | 07:20 PM
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Jon, my pictures are on page 1 of why it is being removed. Now since the vacuum chamber is being removed does the solenoid valve stay there? Do I plug the line going to the solenoid valve.
Old 08-31-2010 | 07:24 PM
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I left the solenoid and vacuum chamber on the air box
Old 08-31-2010 | 07:24 PM
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Originally Posted by jayscoobs
Jon, my pictures are on page 1 of why it is being removed.
I can't view pictures uploaded from Photobucket here at work... so I'm working blind

Originally Posted by jayscoobs
Now since the vacuum chamber is being removed does the solenoid valve stay there? Do I plug the line going to the solenoid valve.
You really don't need to remove the vacuum chamber (unless you want).
Just make sure there are no loose/dangling hoses that could get caught.
And the solenoid can stay there.
No need to plug the hose since there is nothing else producing vacuum to the line.
Old 08-31-2010 | 07:32 PM
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Originally Posted by jayscoobs
Itll probably look weird to have a line just sitting there not connected to anything or serving a purpose, matters well save 1 lb lol.
I took it out.what the hell!

I'm playing catch up as I haven't been on in a day or two, so I'll keep reading, but looks like you were in good hands! Good job guys!


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