The title says it all. To make a long story short, I was installing the manifold and when I did I snapped the end of this piece off where a hose connects to it. I was wondering what it is and what it does? I was also wondering if it would hurt it to drive with it like this without the hose connected to it? The dealership isn't open today and none of the autoparts stores know what the part is to look it up so I can purchase it. Thanks in advance!!

 

isnt that the boost bypass valve? then again dont listen to me

 

What does the boost bypass valve do? I have been forced to drive on it do to going to work and it seems to be running okay. No CELS's yet. When I give it a little gas you can hear a bit of a suction noise.

 

idk free bump to find an answer tho

 

The boost bypass valve cuts off 2lbs of boost at I think 6000rpms. I might be mistaken on the numbers but its just a safety measure so you dont blow up. Just dont push her hard and you should be ok

 

Um, the bypass valve sits on the blower.. That, looks like some sort of Map sensor.

 

the bypass valve doesnt sit on the blower it sit to the right of it in that area

take a look

https://www.cobaltss.net/forums/show...t=boost+bypass

 

It can't be the boost bypass valve then. He's not pointing at the same part i'm talking about.

 

yeah you got em switched around, thats the bypass, hell you just did a mod without knowing it.

 

I think im talking about the actuator then. You can see it in the OP's first pic, at the very bottom.

 

yea Im not sure what it is....just from first glance I thought it was but I look at it now and your looks a bit different then the pis in the How TO.

 

thats wat i thought it was, the boost bypass valve, time to go check mine out see whats up

 

After further reseach, the bypass vavle DOES sit on the blower. What the OP is talking about IS NOT the bypass vavle.

 

Where are you getting this info from? Becuase if you look at the how to and Ive actually seen someone do it on their redline the boost bypass valve is not on the blower. Not trying to be a dick I just wanna see where your getting this from.

 

Would it tell me in the manual?

 

probably not but it couldnt hurt to check

 

https://www.cobaltss.net/forums/problems-service-maintenance-69/loss-power-found-problem-63972/

https://www.cobaltss.net/forums/show...valve+location

When I had my blower off the other day, on the manifold there is an extension where the underside of the bypass vavle connects to. My guess, when enough throttle is given the vavle closes. Or when the ECU limits boost.

No it would not.

 

Damn, I found it. I went to gmpartsdirect and typed in the top number and look what came up. It's a fuel tank evaporator control.
http://www.gmpartsdirect.com/results.cfm

I would still like to know if this would hurt my car to drive with it like this. +1 rep for everyone that's been helping me.

 

Your link doesn't work. Fix it and we can help

 

it is a Fuel Tank Evaporator Control i think

http://www.gmpartsdirect.com/results.cfm

o **** you beat me.

its 20 bucks just get it.

 

More commonly referred to as an EVAP purge solenoid.

 

Damn EVAP control systems.

 

I'm going to try to call the autoparts store first. Don't want to wait for it to be shipped. I have to drive it everyday. Will this hurt to drive it with it like this?

 

You'll probably throw an emissions control code, maybe EVAP system too.

 

Ok I see what your saying. I guess I was just refering to the area where you do the mod itself. I guess what I was talking about is where the hose runs from the valve.