What vacuum line is this?

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Jul 29, 2009 | 12:19 PM

slow96z

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From: South East Houston

What vacuum line is this?

I see this line and have no idea what it goes to. I don't see any babrs on the intake near it so I really have no idea.

Any of you guys recognize it?

Jul 29, 2009 | 12:29 PM

monster81

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From: Bahrain

its probably the opti vcuum harness...which year LT1 is this?

Jul 29, 2009 | 12:55 PM

ss.slp.ls1

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From: Orange County, CA

Not sure. Trace it and see where it leads.

See if any of these help:

http://shbox.com/1/opti_vacuum_conn.jpg
http://shbox.com/1/egr1.jpg
http://shbox.com/1/air_pump_recall.jpg (bottom three squares)

Jul 29, 2009 | 05:15 PM

sweetbmxrider

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From: jersey shore

i'd guess opti or evap but its best to just follow it back, shouldn't be that difficult once you know which direction its going.

Jul 29, 2009 | 05:24 PM

AChotrod

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From: Chicago area

I was thinking evap also since its not in the pic.

Jul 29, 2009 | 05:47 PM

the_merv

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From: The Beach...

I think that it's not the EVAP..unless it was cut. I'm thinking OPTI..

Jul 29, 2009 | 06:45 PM

trippinholyman

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From: bodymore

looks like opti vacuum feed. the brake booster is hooked up there and the evap is a size in between the opti vacuum hose and the brake booster hose. you deleted your egr and air too huh? generally theres the egr lines there which are mucho small. I hooked my opti vacuum feed into the EGR via a 3 way fitting. Is there a hose somewehere under there with a blue and white cap looking thing in the middle and a barb on the end? hook that into a vacuum hose off the manifold and hook it to your opti unless you for some reason have the old nonvented style