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I think these are vacum lines where do they go?

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I think these are vacum lines where do they go? by Ace McCloud

Started on	: 11-20-2007 01:00 PM
Replies	: 8
Last post by	: Pyrthian on 11-20-2007 03:00 PM

Ace McCloud
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Report this Post11-20-2007 01:00 PM

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the first one comes out just under the right side of the air box

the second one is mounted to the firewall and comes out just left of center (it is behind the engine and is not visable in the pic but it is close)

my car is idling at 3k so I think it is vacum anybody know where they go?

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buddycraigg
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Report this Post11-20-2007 01:16 PM

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are they about 1/2" metal tubes?
those are no longer used. one end plugged in to the air filter and the other plugged in to the valve cover.
it would soak the air filter in oil so GM changed things a little bit and now there is a different tube that goes from the valve cover over to the big rubber hose right infront of the throttle body.

i'll see i can find a pic

[This message has been edited by buddycraigg (edited 11-20-2007).]

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buddycraigg
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Report this Post11-20-2007 01:20 PM

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is it the pipe pointed at by the green arrows?

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Pyrthian
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Report this Post11-20-2007 01:31 PM

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quote

Originally posted by Ace McCloud:

look at the back of the plenum - over near the pulleys - looks like the vacuum boost for the brakes is not hooked up.

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Pyrthian
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Report this Post11-20-2007 01:33 PM

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oh yeah - and the other lines you are seeing is the "old - pre-recall" PCV system. often the old lines are left in place. makes it look like something is missing.
the new one connects near the throttle body - that 1/2" T on the snorkel just before the throttle body.

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Ace McCloud
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Report this Post11-20-2007 02:26 PM

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That accounts for one is the other one near the the bottom of the air box part of that system as well? Note: this is a file photo (not my car) it is alot of work to borrow a digi cam

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Pyrthian
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Report this Post11-20-2007 02:32 PM

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quote

Originally posted by Ace McCloud:

That accounts for one is the other one near the the bottom of the air box part of that system as well? Note: this is a file photo (not my car) it is alot of work to borrow a digi cam

yes.

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Ace McCloud
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Report this Post11-20-2007 02:45 PM

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Crap I wonder what could account for the high idle?

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Pyrthian
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Report this Post11-20-2007 03:00 PM

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stuck open IAC, broken EGR tube, brake booster vacuum leak, IAC tube not set right, or some other vacuum leak.

edit: for that large a leak - you should be able to hear it

[This message has been edited by Pyrthian (edited 11-20-2007).]

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