LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Not Sure What This Is???

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Old 09-12-2008, 06:30 PM
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Default Not Sure What This Is???

I was doing the throttle body bypass since I have everything apart and noticed this hanging around with nothing connected to it. There is not a hose in sight to plug into it either. Anyone know what this is? Do I need to hook it back up somewhere?
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Old 09-12-2008, 06:47 PM
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Too close up for me to tell based on location. It's obviously a vacuum solenoid, but not sure which one. I think there's 2-3. One for the EGR, which is on the driver side of the intake towards the back, one on the pass side of the intake about mid-motor and I think possibly another for the heater coolant control valve.
Old 09-12-2008, 08:40 PM
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It's mid engine on the passenger side. I can't seem to find what attaches to it...
Old 09-12-2008, 08:51 PM
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I think it's the EVAP hose.

EDIT:


That's my 93 so it might be a little different. The hose is located on the middle of the intake manifold's left side.
Old 09-12-2008, 08:52 PM
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Originally Posted by Beaflag VonRathburg
I think it's the EVAP hose.
I second that, being 85% sure that's correct.
Old 09-12-2008, 09:09 PM
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AHHHH it's a vent! Well I guess I got worked up for nothing
Old 09-12-2008, 09:41 PM
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Originally Posted by 97SSCamaroGuy
AHHHH it's a vent! Well I guess I got worked up for nothing
Uh, well kinda. It's not meant to be atmospherically vented lol It's supposed to go, probably, to the EVAP canister. I'd assume the connected side goes into the intake? If so, and that solenoid opens, that's a vacuum leak.
Old 09-13-2008, 12:30 AM
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My 97 SS is the same way. From what I looked up before it doesn't connect to anything. Kinda weird how they set it up...
Old 09-13-2008, 12:33 AM
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that all hooks up with ur air pump system, evap solenoid

Last edited by robsquikz28; 09-13-2008 at 12:40 AM.
Old 09-13-2008, 10:47 AM
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EVAP solenoid. yes
Old 09-13-2008, 01:11 PM
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^^Yup.

I think the '97's had it setup differently from the rest of the LT1..I read that somewhere..
Old 09-13-2008, 08:56 PM
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One goes to the throttle body and the one that is unhooked on yours usually goes to a hard line that goes under the front of the intake and hooks to the evap cannister hard line in the fuel line loom.
Old 09-14-2008, 06:28 AM
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It is a vent tube and that is all there is to it.
Old 09-16-2008, 03:49 PM
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Originally Posted by robsquikz28
that all hooks up with ur air pump system, evap solenoid
my air pump system is gone...the previous owner destroyed all the hoses and the pump so i took it all off



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