Fuel leak

Discussion in 'Subaru Impreza WRX Help & advice' started by Andrei, Dec 4, 2018.

  1. Andrei

    Andrei Type RA Member

    Location:
    Romania
    Hi all!
    I have a problem with my suby when i drive hard in corners. If the fuel level is over half ,my fuel starts leaking on my rear right wheel and bumber.
    It seems that the fuel comes from the fuel filler cap ,but the cap is tight. I want to ask if the V4 Sti have a one way valve in the filler neck?(i believe it have)
    I don't understand how the fuel goes up to the filler cap (because the interior of the cap is wet with fuel)
    If i drive hard with the fuel under half level the car starts to fuel cut in hard corners.
    i know i need a surge tank but the leak is normal too?
     
  2. V3 type r

    V3 type r V-Limited Member

    Location:
    Scotland
    Im sure the filler neck is a separate piece @Andrei have you checked where it meets the tank? Could have broken or worked itself loose there. Or maybe needs a new seal
     
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  3. V3 type r

    V3 type r V-Limited Member

    Location:
    Scotland
    If the neck has broken or came loose at the tank it would make me think that the tank is loose. Defiantly worth checking
     
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  4. Ossett2k2

    Ossett2k2 V-Limited Member

    Location:
    Leeds
    Had the same on my old car,fuel filler neck was rotten,got that bad it poured out when filling up,I had to fill up through the fuel pump hatch for a while until I replaced it.
     
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  5. Andrei

    Andrei Type RA Member

    Location:
    Romania
    i replace the filler neck with all the pipes,clamps,seals brand new (also the pipe under the car that meets the tank is new). The problem is the same,under hard corners my fuel comes through the gas gap i think and drain on my bumper and wheel
     
  6. Andrei

    Andrei Type RA Member

    Location:
    Romania
    Any ideeas on how can i solve this problem?
    I see that importcarparts have a one way valve for the filler neck.Any suggestion?
     
  7. V3 type r

    V3 type r V-Limited Member

    Location:
    Scotland
    If its coming out where the cap is it might be where the neck is connected at the top or the seal on the cap itself?
     
  8. Andrei

    Andrei Type RA Member

    Location:
    Romania

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