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strange hissing noise?

outlaw7 Jan 27, 2014

  1. outlaw7

    outlaw7 Member

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    Just put the car onto the drive and noticed a strange hissing noise. Turned the radio off and air con off, noise was still there. I got out and walked around the car and it seemed to come from around the passenger rear wheel area. So much so that I thought it may be the tyre. I switched the engine off and no more noise.
    Any ideas?
     
  2. bobinder

    bobinder Active Member

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    A snake in the boot?
     
  3. outlaw7

    outlaw7 Member

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    nah checked that!
     
  4. TTLAW

    TTLAW Member

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    Fuel pump?
     
  5. outlaw7

    outlaw7 Member

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    Yeah could be fuel pump. Its strange that i have never heard it before. However it is back with Audi to have the paintwork sorted again, so have asked them to check it out.
     
  6. andywil13

    andywil13 Active Member It's my birthday

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    Could it be the fuel cap? Sometimes when I go to fill up I get a rush of air when I release the fuel cap. I have noticed on my last A3 you could sometimes hear it hissing after a journey. Easy to check, next time you hear it, release the fuel cap and see if it stops
     
  7. cuke2u

    cuke2u Well-Known Member TFSI Owners Group Audi A4 saloon S-line owners group

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    Which side of the car, you only say passenger rear wheel area...
     
  8. outlaw7

    outlaw7 Member

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    Turns out it needed a new fuel pump.
     

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