Blow off valve leak
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This is a discussion on Blow off valve leak within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; hey guys I have a 2004 WRX I feel that the blow off valve is leaking. is there any way ...

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    Blow off valve leak

    hey guys I have a 2004 WRX I feel that the blow off valve is leaking. is there any way to testing it without swapping a different blow off valve? i tried the starting fluid method by spraying it when the system is vacuum but i feel the bov is designed to keep any vac leaks. Any one have any ideas?

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    Master Baiter EJ257's Avatar
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    Pressure-test the intake tract
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning

    "Never trust anything that bleeds for a week and lives ..."

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    I can here the hiss from that area when the turbo is pushing the air i was thinking maybe soapy water

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    Master Baiter EJ257's Avatar
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    Pressure test the intake tract. That will allow you to pinpoint exactly where the issue is while the car is stationary and then you can figure out how to fix it.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning

    "Never trust anything that bleeds for a week and lives ..."

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    Ok i will do that i did pull off the bov there is a small hair line crack on the ill attach a pic its kinda hard to see but if i blow threw the port air dose come thru bottomClick image for larger version. 

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    So the bov dose leak some but for some reason there us air going in to the last hose on my intake inlet don't know if its suppose to i thought it should be air tight but i don't have the experience in the car world

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    And it will hold up to 20 psi but not for long but when out runs it cant even get 2 psi

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    Registered User WRX-maniac's Avatar
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    Def got a boost leak somewhere. Check all of your intercooler connections, hoses, turbo inlet, etc.
    2011 WRB WRX hatchback---Stage 2
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    Here is i pic i found online Click image for larger version. 

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ID:	150681 this has air coming out and it goes to this part of my turbo inlet Click image for larger version. 

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    Any ideas y this line has air go through it when i pressures up the system

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