Possible boost leak, 2014WRX
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This is a discussion on Possible boost leak, 2014WRX within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Hey guys i have a 2014 WRX. Mods- Invidia DP, Cobb SF, Turboxs BOV, Cobb Stage 2+ Im experiencing what ...

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    Possible boost leak, 2014WRX

    Hey guys i have a 2014 WRX.
    Mods- Invidia DP, Cobb SF, Turboxs BOV, Cobb Stage 2+

    Im experiencing what i believe is a boost leak but I'm not sure. Im still hitting peak boost every time, but i hear this loud high pitch sound under hard acceleration. The best way to describe the sound is a tea pot on the stove. It doesn't make this noise every time, and usually only in 2-4th. It only last for a second or two. Ive already checked my DP, BOV, Throttle body hose and every other line i can and no luck. Ive been looking on the forums for a similar post/sound and can't find anything. Any help would be great, thanks!

    -Chris

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  3. #2
    Registered User wrxnguyen's Avatar
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    BOV aren't good for the third gens. That might be your problem

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    On my dodge dart the high whistle sound is normal under high acceleration


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  5. #4
    Moderator Donkey's Avatar
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    Do a boost leak test.
    Resident Adviser @ WTF Tuning, LLC
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    I have the 50/50 BOV, i took it off and put the stock back on already and it still makes the noise. Im going to do a test this weekend and see if i find anything. Just wondered if anyone experienced this noise before. Thanks for the help/input guys.

  7. #6
    Wants to Sell His Honyota Civilander..Any Takers? BigDaddyRex's Avatar
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    I had the same noise. Hose to the IC was coming loose. Reattached with a better clamp, problem gone. I've heard others with the '11-14s who've had the same issue.
    - Chris
    2011 WRX DGM (The Fastest Color) 5DR
    Cobb AP Stage 2 93, Cobb DP, RAs, STS (the dream comes true ...)

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    My ic to throttle body was coming loose and making the whistling noise. I put an aftermarket avo ic to tb hose and it went away but then came back a little bit. Im running srage 2 also and I think its to much pressure for the stock tmic. I went to a slwg map and lwg map on cobb to lessen the whistle and it helped


    long story short....a new ic to tb hose will help but think higher capacity tmic is the long term answer

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    I thought for sure that was my problem but i took the hose off. Repositioned it and tightened it down good and still i hear the noise. That was my first idea to check but its on there good. ill try changing my map and see if that helps. Ill try and get a video up later of the noise.

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    I wouldn't be boosting around and driving it hard untill you fix the problem.

  11. #10
    Registered User anpato's Avatar
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    Use T-bolt clamps for the ic hose, solved my problem and crank those suckers down.
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    Invidia Catless Downpipe, Custom Short Ram Intake, Self Tuned Using ECU Flash, Romraider and Tactrix

  12. #11
    Registered User cflip2x's Avatar
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    I had to adjust mine a bunch of times. Hope you find it but im guessing thats where it is just like everyone else. The rubber got "warped" or folded funny on itself when i put it back on (if that makes any sense). I ended up ordering a new TB hose just waiting for warmer weather to complete the install.
    2012 WRB 4DR | SPT Exhaust | Short Throw | Rally Armour | WC Lathe Werks Custom TI Knob | Kartboy Bushings | Stoptech Brake Lines | JBK Elements DRL | STI HID Retrofit | XB LED Angel Eyes | GrimmSpeed Lightweight Crank Pulley

    CFLip2x 2012 WRB WRX

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    My stock 2014 WRX makes a barely perceivable whistle........crap I thought this is normal.....my old 1985 Volvo 245Ti (with nice mods) and no boost leaks made the same noise.

  14. #13
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    You said loud. Sorry. Is it normal to make a barely perceivable high pitch whistle?

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    I'll order a new hose and clamps and see if that solves my problem. Oilypablo you sound like you have a normal turbo whistle. Thanks for the input guys.


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  16. #15
    Registered User WREX8's Avatar
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    hey guys, i believe that i have a TB leak, but i am not sure. when ever i go past 3k rpm in 2-5 theres this farting noise coming from the front left of the car. like a high pressured fart sound. lol what do you guys think that the issue could be?

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