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Fuel pressure - S3

Discussion in 'A3/S3 Forum (8L Chassis)' started by jesters3, Nov 21, 2007.

  1. jesters3

    jesters3 Active Member
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    Arvo, a couple of times when I have gone to fill up, there seems to be a lot of pressure coming out of the fuel tank. As a result I have to keep the cap on and unscrew it slowly to let the air out; if I take it off straight away petrol spews out. This lasts for a good 30 seconds.

    I smell petrol every now and again from the front. I'm thinking I may have to get the fuel filter changed as the build up may be from here.

    Any ideas?

    Cheers
     
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  3. campbell

    campbell Member

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    change the fuel filter and see if its any better, simple job if up on ramps
     
  4. jojo

    jojo Looking for Boost!
    Staff Member Moderator quattro Audi S3

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    Mine makes a little chirp which lasts under a second, and no fuel spirts out, get it checked mate.
     
  5. jesters3

    jesters3 Active Member
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    Yeah not brilliant, going to get the filter replaced as it has done 149k worth of fuel! Hopefully that should fix it.
     
  6. patrick swayze

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    do it yourself, it takes like 5 minutes?
     
  7. jesters3

    jesters3 Active Member
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    Will do, Getting the filter tomorrow from VAGPARTS and doing it at the weekend, seems straightforward enough, just have to remember to depressurize the system before I crack on!
     
  8. mazzy

    mazzy Member

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    So does changing the fuel filter resolve this issue??
     
  9. jonS3

    jonS3 Member

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    even if it doesn't it's worth changing anyway for the sake of a few £ and the fact that about a million litres of fuel have passed through it.........
     
  10. mort

    mort New Member

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    judging from there being no more posts i take it replacing the fuel filter solved the problem? I know it was about 2 years ago but im just asking because i have the same problem!
     
  11. jesters3

    jesters3 Active Member
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    No i'm afraid not.

    The issue came down to a fubar gravity valve (part 14)

    [​IMG]

    This meant dropping the fuel tank to get to the part and then to replace. The part is about £5 but takes 3-4 hours to sort out.

    I had to get it done at a Stealers and it cost me £500ish all in. If you get this done at an indie it should be half the price.
     

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