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Old 12-03-2013, 11:01 PM   #1
KornShaDoW097
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Default Rattling device in trunk

04 wrx


There is this box that rattles when I turn off my ignition. It's in the wall in my trunk. I'm thinking its for fuel since my turbo timer kicks in and I heat this device rattle and my AFR fluctuates for a few seconds.

Anyone know what it is?

Thanks
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Old 12-04-2013, 06:37 AM   #2
HinshawWRX
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There is a plastic vent in the trunk that is a common rattle.

Are you talking in the trunk itself, or on the underside? Have you tried looking for it?
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Old 12-04-2013, 01:15 PM   #3
OldManRed04
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I think you should remove the completely worthless turbo timer to start...
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Old 12-04-2013, 11:35 PM   #4
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Quote:
Originally Posted by OldManRed04 View Post
I think you should remove the completely worthless turbo timer to start...
True, yet doesn't help his problem.
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Old 12-05-2013, 12:12 AM   #5
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Originally Posted by Andrewxxcarlson View Post
True, yet doesn't help his problem.
It's not a problem. The noise he hears is most likely the flapper on the trunk vent.
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Old 12-09-2013, 07:03 AM   #6
mcmikecruz
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Where the hell is that flapper ? It's been bugging me for 6 years
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Old 12-09-2013, 10:34 AM   #7
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Originally Posted by mcmikecruz View Post
Where the hell is that flapper ? It's been bugging me for 6 years
Drivers side, behind the carpet crap below the jack. Fire up the car and let it idle. Open the trunk and you will hear it. Pull the cover off the jack and you'll see it. You can't remove it, so in not sure what your after. You want it there to equalize pressure in the cabin and for airflow.
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Old 12-09-2013, 11:10 AM   #8
mcmikecruz
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Yeah I hear it all the time it rattles when my subwoofer hits I don't want to remove it just find a way to dampen the sound some maybe with some Foam tape or something
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Old 12-09-2013, 07:19 PM   #9
KornShaDoW097
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Quote:
Originally Posted by HinshawWRX View Post
There is a plastic vent in the trunk that is a common rattle.

Are you talking in the trunk itself, or on the underside? Have you tried looking for it?
Yea I know the vent you're talking about. But it's on the passenger side In the trunk, it's a little electronic box that makes noise. Like its attempting to regulate fuel
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Old 12-09-2013, 07:20 PM   #10
KornShaDoW097
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Quote:
Originally Posted by Andrewxxcarlson View Post

True, yet doesn't help his problem.
It's worthless? It's for oil coke prevention and warm down... Why would it be worthless?
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Old 12-09-2013, 10:57 PM   #11
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Quote:
Originally Posted by KornShaDoW097 View Post
It's worthless? It's for oil coke prevention and warm down... Why would it be worthless?
Huh? Did I say worthless? I don't recall that.
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Old 12-09-2013, 11:40 PM   #12
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Quote:
Originally Posted by KornShaDoW097 View Post
It's worthless? It's for oil coke prevention and warm down... Why would it be worthless?
Not sure what oil "coke" and "warm down" you are referring to, but if your running a turbo timer on these cars, you clearly don't understand the system. There is no need for a turbo timer due to the design of the system.

Please, read the following and educate yourself. When your done, go remove the turbo timer and help yourself out.

http://forums.nasioc.com/forums/show...hreadid=465156
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Old 12-11-2013, 02:50 AM   #13
KornShaDoW097
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Originally Posted by Andrewxxcarlson View Post

Huh? Did I say worthless? I don't recall that.
Sorry quoted the wrong person old man said that
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Old 12-11-2013, 02:57 AM   #14
KornShaDoW097
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Quote:
Originally Posted by OldManRed04 View Post

Not sure what oil "coke" and "warm down" you are referring to, but if your running a turbo timer on these cars, you clearly don't understand the system. There is no need for a turbo timer due to the design of the system.

Please, read the following and educate yourself. When your done, go remove the turbo timer and help yourself out.

http://forums.nasioc.com/forums/show...hreadid=465156
My timer came with the car and was already wired so its more of a hassle to uninstall it since I never wired it in the first place. Besides it only stays on a 30sec -min anyways so it doesn't really matter. Oil coking is in the article you linked, so read it.

I guess a timer is not needed since we have water coolant lines, oh well.

My main concern is the weird noise I hear in the trunk, what is this device?
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Old 12-11-2013, 10:46 AM   #15
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I've already stated what the device in the trunk is.

Oil cooking is not an issue with these cars due to the design of the cooling system. Water is still circulating through the turbo through convection.
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Old 12-11-2013, 12:55 PM   #16
HinshawWRX
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Anyways, 30 to 60 seconds won't give you any considerable cool down on oil or water, so it's not doing anything but wasting gas.
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Old 12-11-2013, 01:02 PM   #17
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theres a flapper on both sides of the trunk under the side carpets. to stop the noise you just grap the rubber flap and pull it in through one of the holes so its jammed and can't flap anymore.
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Old 12-11-2013, 09:01 PM   #18
KornShaDoW097
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Quote:
Originally Posted by HinshawWRX View Post
Anyways, 30 to 60 seconds won't give you any considerable cool down on oil or water, so it's not doing anything but wasting gas.
It varies based on load or driving. 30sec-2min. It's been disabled. So no worries. It has an off button
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Old 12-11-2013, 09:04 PM   #19
KornShaDoW097
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I'll double check but I doubt it's the flappers. I mean I literally turn the key off on a cold night and as soon as I do the noise triggers 1-2seconds after turbo timer activation.

But ok, my timer has an off button so it's off now. I still don't know what that box is though....
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Old 12-13-2013, 10:44 PM   #20
David Medina
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i always had a rattle of some kind in the trunk.

I always thought it was this mini screwdriver that i dropped between the bumper a long time ago.

with i could find out what it is though. ive learned to just accept it at this point.
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