Question about CAI and Vacuum Hose - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Air Induction

Air Induction Performance Air Intake/Air Induction Modifications

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  #1  
Old 02-11-2007, 08:33 PM
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angelwithagun angelwithagun is offline
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Question about CAI and Vacuum Hose

Installed the K&N CAI on my 05 TB today. Only problem we ran into was that on the instructions step #5 says to "Remove the vacuum hose from the fuel pressure regulator and from the resonator as shown." There was no vacuum hose hooked to the resonator nor was there any where for one of these to go.

Has anyone else installed the CAI on an 05 TB LS and ran across this issue? When you get to the end you have an open vent on the K&N intake tube.

In the pics with the K&N put on you'll see an open vent sticking out.

Thanks for any info!







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  #2  
Old 02-11-2007, 08:50 PM
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hatchet669 hatchet669 is offline
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i beleieve those hose was at the lower right corner of the big black resonator on the bottem part of it... if i can remeber correctly... so check the bottem of the resonator and see if u have a small maybe 2 inch tube sticking outta there and then look in that same spot on the engine... sorry i know its hard to explain with out a proper pic sorry
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Old 02-11-2007, 08:54 PM
jaylind jaylind is offline
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In your first picture the cord for your drop light it about 4 inches to the right of the fuel pressure regulator.
In this picture BLKON20 ran it into the intake from the regulator maybe yours is already run this way?
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Old 02-11-2007, 09:56 PM
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angelwithagun angelwithagun is offline
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I reuploaded the 3rd picture to show the vent I'm talking about. It doesn't look like your pic and mine are referring to the same thing? Or the vent on that intake is different than mine?
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Old 02-11-2007, 10:16 PM
jaylind jaylind is offline
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Your hose should go from the intake to the regulator (skinny line) My regulator has a blue/green dot on it. this picture is from the drivers side. You line may goto the capped fitting on the intake(the nub)

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Old 02-11-2007, 10:48 PM
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angelwithagun angelwithagun is offline
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Took more pics so maybe you can see from the driver's side.

Is that it in the last picture that I circled?



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Old 02-11-2007, 10:52 PM
bolomk1 bolomk1 is offline
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i also installed K&N today

I couldn't find the fuel regulator line on my 05 either. My instructions said "if you have one and my kit had a plug to use if it wasn't there. I'm gonna go look again cuase I've got a feeling it could be a bad thing if theres one there and i missed it, but I sure couldnt find one.
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Old 02-11-2007, 10:57 PM
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angelwithagun angelwithagun is offline
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Quote:
Originally Posted by bolomk1 View Post
I couldn't find the fuel regulator line on my 05 either. My instructions said "if you have one and my kit had a plug to use if it wasn't there. I'm gonna go look again cuase I've got a feeling it could be a bad thing if theres one there and i missed it, but I sure couldnt find one.
Ugh. Mine didn't have a cap with it. So the vent is sitting open. I wonder where I can get a cap. It didn't say "If" either. Guess I'll have to wait for K&N to get back to me.

Just curious, what was the model number on your intake kit if you also have an 05?
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Old 02-11-2007, 10:57 PM
jaylind jaylind is offline
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On the intake do you guys have this fitting on the right? this is the vaccum for the regulator.
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Old 02-11-2007, 11:02 PM
jaylind jaylind is offline
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You can get the caps cheap at the Parts store. cap it if you are not using it. may suck in so dirt and dust.
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