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03-11-2008, 09:03 AM | #1 |
Scooby Newbie
Member#: 53064
Join Date: Jan 2004
Chapter/Region:
MWSOC
Location: IN
Vehicle:2011 Legacy 2.5i 2012 Acura TSX |
"Whine" in engine
Hey everybody....just picked up my '08 WRX sedan last night....had an '04, sold it in '06 (started a family)...now I'm BACK!
Turned the key to ACC last night and popped the hood....I heard a "whine" sound that didn't stop. It sounded like a fuel pump, but it just wouldn't stop until I turned the key off. Anyone familiar with this? It's faint, and can't be heard inside the cabin. I'm liking the 2.5 so far (less than 24 hrs)....what an improvement over the 2.0! I'm anxious for the combined minds of this board to unleash more of it's potential! I can't tell you how happy I am to be back!
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03-11-2008, 07:12 PM | #2 |
Scooby Specialist
Member#: 123859
Join Date: Aug 2006
Chapter/Region:
MAIC
Location: Delaware
Vehicle:06 STI 330hp/357lb |
yea no clue about the whine or whatever it is but the 2.5 is great
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03-12-2008, 02:42 AM | #3 |
Scooby Newbie
Member#: 126867
Join Date: Sep 2006
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im fairly certain its the drive by wire throttle body.
good chance im wrong though |
03-12-2008, 02:44 AM | #4 |
Scooby Specialist
Member#: 51588
Join Date: Dec 2003
Chapter/Region:
SCIC
Location: Burbank, CA
Vehicle:2006 WRX TR 1997 Supra Turbo |
Can you isolate it under the hood? Tell us more about your setup.
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03-12-2008, 04:49 AM | #5 |
Scooby Specialist
Member#: 83790
Join Date: Mar 2005
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Throttle body. Part of the drive by wire system.
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03-12-2008, 08:32 AM | #6 |
Scooby Newbie
Member#: 53064
Join Date: Jan 2004
Chapter/Region:
MWSOC
Location: IN
Vehicle:2011 Legacy 2.5i 2012 Acura TSX |
Haven't had a chance to isolate it yet. I'll check tonight.
My setup is enitrely stock. For now. |
03-12-2008, 08:43 AM | #7 |
Scooby Newbie
Member#: 85613
Join Date: Apr 2005
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Not really related to your "whine". But has anyone noticed the "whine" that increased under hard throttle acceleration in 1st, 2nd and 3rd gear? Sounds like a "gas turbine" spooling up....... I'm not exactly sure if it is the turbo, or if its from the trans, regardless.........it's cool.
Mike |
03-12-2008, 11:59 AM | #8 |
Scooby Specialist
Member#: 136296
Join Date: Dec 2006
Chapter/Region:
TXIC
Location: Midtown, Houston, TX
Vehicle:2005 STi OBP |
Its the servo that controls the throttle plate. Its normal on all the Subaru DBW cars. I was a little concerned at first, but then I quickly got used to it. Its normal, nothing to worry about.
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03-12-2008, 02:14 PM | #9 |
Scooby Newbie
Member#: 170303
Join Date: Jan 2008
Chapter/Region:
SWIC
Location: Tucson, Az
Vehicle:2005 Subaru LegacyGT Silver |
lol i have the same whine on my legacy ive been told it sounds like a supercharger whine lol
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03-12-2008, 02:26 PM | #10 | |
Scooby Specialist
Member#: 136296
Join Date: Dec 2006
Chapter/Region:
TXIC
Location: Midtown, Houston, TX
Vehicle:2005 STi OBP |
Quote:
I had the dealer tell me that the transmission whine on the STi's was the turbo spooling up |
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03-12-2008, 02:38 PM | #11 |
Scooby Newbie
Member#: 85613
Join Date: Apr 2005
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Nope, the car is bone stock. I'm actually leaning more towards "gear whine", it seems to be more linear than a turbo spooling would be. Maybe if I get bored later, and if it slows down, I'll throw the chassis ear on it and go for a drive.
Mike Beyer Subaru |
03-12-2008, 03:26 PM | #12 |
Scooby Specialist
Member#: 44771
Join Date: Oct 2003
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I could search, but I'm busy. Whats a chassis ear? A mic planted somewhere? I'm learning all sorts of stuff on nasioc today
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03-12-2008, 03:38 PM | #13 |
Scooby Newbie
Member#: 85613
Join Date: Apr 2005
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It's a 6 channel selectable mic, hearing aid thingy. Basically when you have a sound and you don't know where its coming from, you mount the 6 mics in the places where it "could" be, and go for a drive. You switch around that mics until you get to the one where you hear the noise the loudest......then look for the problem there.
Mike |
03-12-2008, 03:40 PM | #14 | |
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Member#: 44771
Join Date: Oct 2003
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