intake system??????? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 22 (permalink) Old 07-15-2008, 10:39 AM Thread Starter
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intake system???????

what is the plastic hose that goes into the airfilter box, at the top right
corner on my 2007 2.2 ls cobalt? and should i hook it up to my cold air intake???????



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post #2 of 22 (permalink) Old 07-15-2008, 11:09 AM
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huh?? U mean the breather hose????

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post #3 of 22 (permalink) Old 07-15-2008, 11:13 AM
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that sir would be your Secondary Air Injection hose (SAI). It's a pain in the ass for 2.2l owners that have it. I think all it does is add fresh air to the exhaust manifold (greener car). Only one aftermarket intake works with it, the k&n typhoon system. You could also put a small filter on the end of the hose if you wanna use another intake, i heard that works as well. But if you just disconnect it, it will throw a CEL. Also, with that you cannot run an aftermarket header either. Part of california and new york emissions garbage I believe.
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post #4 of 22 (permalink) Old 07-15-2008, 11:23 AM
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Good thing I live in Illinois

2006 Chevy Cobalt LT
Synthetic oil
K&N air intake system
Custom 2.5" dynomax exhaust system
B&M shiftplus
B&M tranny cooler
Catless Downpipe
stainless steel pacesetter header
5900k light bulbs
2.4 intake manifold
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post #5 of 22 (permalink) Old 07-15-2008, 11:38 AM
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i live in PA and still have the damn thing, no idea how my car ended up with it but supposedly a good majority of late model 2006-2007 2.2's have it. If not all....
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post #6 of 22 (permalink) Old 07-15-2008, 12:23 PM
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I drive a 2006 cobalt and I don't have that crap on my car thankfully

2006 Chevy Cobalt LT
Synthetic oil
K&N air intake system
Custom 2.5" dynomax exhaust system
B&M shiftplus
B&M tranny cooler
Catless Downpipe
stainless steel pacesetter header
5900k light bulbs
2.4 intake manifold
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post #7 of 22 (permalink) Old 07-15-2008, 02:03 PM Thread Starter
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nope i tried disconnecting it and it would not idle right so i had to put stock back on, for now i will modify my cold air for my car with no prob. when i get a chance anyway. but yeah that sai has to have air forced from the air intake through to the "hose"

thanks for letting me know, and i can still hook up this cold air intake for sure, i will deff. [post pics when finished.



yeah i mod, it's called having style.......
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post #8 of 22 (permalink) Old 07-15-2008, 02:15 PM
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I have SAI on my car and i just cut the hose and let it suck in dirty air, because the air that it take in just goes strait out the exhaust. It wont set of a CEL if you let it sick in dirt air i asked the dealer
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post #9 of 22 (permalink) Old 07-15-2008, 02:37 PM
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Then what's the hose going from the valve cover to that thing, and what is that big thing, just another resonator?



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post #10 of 22 (permalink) Old 07-15-2008, 05:54 PM Thread Starter
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my car wouldn't run with it off the intake i tried. so i hooked it up and here it is. cost of like $70 or so.




yeah i mod, it's called having style.......
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