quick question (recirculation valve)
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This is a discussion on quick question (recirculation valve) within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; Most of the ppl I know with boosted cars have aftermarket BOVs.... I kept the stock recirculation valve, I noticed ...

  1. #1
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    quick question (recirculation valve)

    Most of the ppl I know with boosted cars have aftermarket BOVs.... I kept the stock recirculation valve, I noticed all of their valves open and release pressure even if they are sitting in N and hit the throttle... my question is should my factory recirculation valve be doing the same thing. If I hit the throttle in N I do not hear it. I don't care not hearing it I just want to make sure it's functioning properly.

    BTW: 04 STi if it helps

    I really appreciate the help thanks

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  3. #2
    Registered User sjcurtis's Avatar
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    Your valve is opening you just can't hear it because it is muffled.

  4. #3
    Registered User poly_poly-man's Avatar
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    has your car exploded?

    then it's working.
    My big thread: The Used WRX Buying Checklist - Please Contribute!

    My current car: 2002 WRB WRX Wagon.
    Mods: GM BCS, Carberry SD rom, uppipe, AEM UEGO, Klunk Killer, F+R shifter bushings, head unit

  5. #4
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    I can hear it while Im driving...

    This is why I ask... Ill be driving down the street going through all the gears full boost no issue (I do hearing the recirc.) after I stop accelerating and maintain a speed I get a crazy almost rattling sound and it stops making boost. Last time it happened I was at 60MPH and about 2k RPM.

    Its as if I have full pressure out and wide open intake as long as Im pulling forward 30sec after I stop it feels like the intake is restricted by 80%...

    Thoughts???

  6. #5
    Registered User jd92677's Avatar
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    If you have a stock intake, you should not easily be able to hear the recirc valve, you may have a leak in the intake tubing or recirc tubing. Boost is load dependent. If you are not accelerating, you won't be making boost. As far as the rattling, could be a lot of different things.
    Stink eye mob #727
    2011 WRX DGM Hatch, Protuned Stage 1

  7. #6
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    Ive been working on it and testing everything I can think of... Im thinking the issue is boost/vacuum related. I checked all the vac lines pulled most off to see if they were soft or dry and put them back on all seemed good. I checked all the intake and turbo hoses to make sure they were not soft and collapsing with the pressure. The last thing I did was pulled the plug on the BCS put a little dielectric grease in the plug and plugged it back in. Took it to the gas station and shes been ok from then on (40 Miles)

    I dont know what it was or if its fixed but Ill keep you updated

    Thanks

  8. #7
    Registered User teflon_jones's Avatar
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    What mods does your car have?
    Scott
    Past Subies - '11 STI Limited stage 1+ and '04 STi stage 2+
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    SPT Ram airintake... magnaflow axle back... and 2nd cat removed.... Stock other then that

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