Drift Monkey Posted September 1, 2004 Share Posted September 1, 2004 I don't know if it's just me, but every time I start my car in the morning I hear this whistle just before the engine cranks up. WTF is this? Link to comment Share on other sites More sharing options...
kanoswrx Posted September 1, 2004 Share Posted September 1, 2004 Yeah I hear that sometimes too. My guess is its the fuel system priming. my wrx made a sound around the same time, although it didn't sound as high pitched. Link to comment Share on other sites More sharing options...
Drift Monkey Posted September 1, 2004 Author Share Posted September 1, 2004 [quote name='kanoswrx']Yeah I hear that sometimes too. My guess is its the fuel system priming. my wrx made a sound around the same time, although it didn't sound as high pitched.[/quote] Yes! It is QUITE high pitched. Just kinda funny sounding I guess... Link to comment Share on other sites More sharing options...
SUBE555 Posted September 1, 2004 Share Posted September 1, 2004 I'm going to say you're probably hearing the fuel system prime. You hear the same/similar thing on many vehicles. Link to comment Share on other sites More sharing options...
Drift Monkey Posted September 1, 2004 Author Share Posted September 1, 2004 [quote name='SUBE555']I'm going to say you're probably hearing the fuel system prime. You hear the same/similar thing on many vehicles.[/quote] I've heard the fuel system prime in many cars, but none of them ever sounded like THIS! It's like a more of a whistle then a humm/whine. Link to comment Share on other sites More sharing options...
arcsine Posted September 1, 2004 Share Posted September 1, 2004 I'd describe my noise more like a hoot, I figured it was the ECU tuning the throttle body to get proper flow through the turbo/FMIC right after startup. Sounded like a pneumatic/harmonic issue, like blowing over the top of a half-empty bottle. Link to comment Share on other sites More sharing options...
Drift Monkey Posted September 1, 2004 Author Share Posted September 1, 2004 [quote name='arcsine']I'd describe my noise more like a hoot, I figured it was the ECU tuning the throttle body to get proper flow through the turbo/FMIC right after startup. Sounded like a pneumatic/harmonic issue, like blowing over the top of a half-empty bottle.[/quote] bingo. Link to comment Share on other sites More sharing options...
Guest *Jedimaster* Posted September 1, 2004 Share Posted September 1, 2004 Holy crap- I hear that form time to time too- every time I remember to listen for it, it doesn't do it. Link to comment Share on other sites More sharing options...
Ken S Posted September 1, 2004 Share Posted September 1, 2004 [quote name='arcsine']I'd describe my noise more like a hoot, I figured it was the ECU tuning the throttle body to get proper flow through the turbo/FMIC right after startup. Sounded like a pneumatic/harmonic issue, like blowing over the top of a half-empty bottle.[/quote] The sound I hear is more like a "groan" that lasts about 1 second and the sound rises in frequency towards the end. It happens when you turn the key to "ON". Is that what you are all talking about? It also only happens once in a while. Ken Link to comment Share on other sites More sharing options...
kanoswrx Posted September 1, 2004 Share Posted September 1, 2004 [quote name='Ken S'][quote name='arcsine']I'd describe my noise more like a hoot, I figured it was the ECU tuning the throttle body to get proper flow through the turbo/FMIC right after startup. Sounded like a pneumatic/harmonic issue, like blowing over the top of a half-empty bottle.[/quote] The sound I hear is more like a "groan" that lasts about 1 second and the sound rises in frequency towards the end. It happens when you turn the key to "ON". Is that what you are all talking about? It also only happens once in a while. Ken[/quote] Yeah its probably the same thing your hearing. when you turn the car to On the fuel system primes. I usually use the startup sequence on the guages to tell me when to actually turn on the car. I wait for them to do their thing then turn the car on. this way I know the fuel system is ready to go. Link to comment Share on other sites More sharing options...
bmc Posted September 1, 2004 Share Posted September 1, 2004 HA! I've heard this a few times too. Funny sounding. Haven't heard it in a while though.. Link to comment Share on other sites More sharing options...
Drift Monkey Posted September 1, 2004 Author Share Posted September 1, 2004 [quote name='jedimaster']Holy crap- I hear that form time to time too- every time I remember to listen for it, it doesn't do it.[/quote] OMG me2bbq!!!11 :o Link to comment Share on other sites More sharing options...
Guest *Jedimaster* Posted September 1, 2004 Share Posted September 1, 2004 OMG H12U- Buttsecks?!!!111 Link to comment Share on other sites More sharing options...
RobY Posted September 1, 2004 Share Posted September 1, 2004 Yep hear it every morning when i turn the car to on position Link to comment Share on other sites More sharing options...
Hatt Marrington Posted September 2, 2004 Share Posted September 2, 2004 omgwtfbbq -Hatt 2005 Obsidian Black Legacy GT 5MT Un-Limited Sedan Link to comment Share on other sites More sharing options...
Guest *Jedimaster* Posted September 2, 2004 Share Posted September 2, 2004 WTFpost? Link to comment Share on other sites More sharing options...
Th3Franz Posted September 2, 2004 Share Posted September 2, 2004 I hear this sound as well. A buddy of mine said it might be the power steering as well, but who knows. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Guest *Jedimaster* Posted September 2, 2004 Share Posted September 2, 2004 It does sound strange, but I don't see how it would be the power steering. And if it was the fuel pump, wouldn't that come from the rear of the car. Link to comment Share on other sites More sharing options...
Hatt Marrington Posted September 2, 2004 Share Posted September 2, 2004 yea, fuel pump is in the tank -Hatt 2005 Obsidian Black Legacy GT 5MT Un-Limited Sedan Link to comment Share on other sites More sharing options...
melayout Posted November 4, 2005 Share Posted November 4, 2005 From [url="http://www.legacygt.com/forums/showthread.php? t=20588&highlight=fuel+pressure+regulator"]http://www.legacygt.com/forums/show...ssure+regulator[/url] : [QUOTE] From [url="http://techinfo.subaru.com/"]http://techinfo.subaru.com[/url] : Quote: Noise from Pressure Regulator [b]Service Bulletin #09-41-05[/b] [b]Pages:[/b] 2 [b]Bulletin Description:[/b] The purpose of this bulletin is to address noise that can occur when turning the ignition switch from the ýONý position, to the ýSTARTý position during engine cranking. When the ignition switch is turned on, the fuel pump begins to activate and pulsate. This noise may be audible. The pressure regulator was modified to prevent this pulsating noise. If you encounter a noisy pressure regulator, replace it with the modified one. Actual TSB at [url="http://www.scoobymods.com/forums/showthread.php?t=4809"]http://www.scoobymods.com/forums/showthread.php?t=4809[/url] . I've had it since day one and 35k miles later I haven't bothered bringing it up to the dealer since I don't want to mess with anything if it ain't broke. [/QUOTE] I keed I keeed Link to comment Share on other sites More sharing options...
GTsleeper Posted November 6, 2005 Share Posted November 6, 2005 Thats a pulsing noise, i would thing that is different from whats discribed? maybe its the same. the fuel pump isnt that far behind u to hear its just at the rear seat- isnt there a access panel for the fp assembly? If the noise is that loud with 25-30k might be a good idea check the fuel filter- unless its integrated into fp assem. Link to comment Share on other sites More sharing options...
msb175 Posted November 7, 2005 Share Posted November 7, 2005 interesting, i hear this sound every now and then also. just didn't know how to describe it, so i never posted. eh, doesn't sound like anything bad Link to comment Share on other sites More sharing options...
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