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Discussion Starter · #1 ·
When removing my airbox in preparation for a short shifter install, I noticed that my car doesn't seem to have the skinny vac hose attached to the airbox.

1. What does this hose do / Where does the other end of this hose connect to in case I need to trace it down?
2. Is my car a one off or does your car have a missing hose too ?

You can see the hose being yanked off around 1:05 in this video

Thanks
 

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Discussion Starter · #2 ·
Found it, .. after yanking the airbox off. .. the other end was coming off the front of the engine. All the more reason not to let the dealer touch my car more than necessary.

Still, what does that hose do ?
 

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No idea what the hose does, but I installed a CTS turbo intake kit and after awhile this hose got blocked (not a kit error, I just didn't tighten everything down enough). It through a CEL that went away when I freed up the hose, so I'm going to say it's probably important.
 
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