I'm leaking gas
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Cadillac STS-V Series Forum Discussion, I'm leaking gas in Cadillac V-Series Forums; Every once in awhile when I would drive the car I would get a strong smell of gas.. Now it ...
  1. #1
    pjeter is offline Cadillac Owners Member
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    I'm leaking gas

    Every once in awhile when I would drive the car I would get a strong smell of gas.. Now it seems to be dumping fuel out the bottom. It starts and it runs and all the fuel lines on top seem to be ok... Any suggestions on what to look for?

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  3. #2
    bobs-sts-v's Avatar
    bobs-sts-v is offline Cadillac Owners Fanatic
    Automobile(s): STS-V
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    Re: I'm leaking gas

    The fuel filter is under the car below the passenger seat. That's what was making the "whistling" noise on mine whenever it got cold. Replaced and all is quiet. Check connections to the filter if the leak is under your car (put down some cardboard to see where the leak is).

  4. #3
    pjeter is offline Cadillac Owners Member
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    Thread Starter
    It's coming out of the bottom of the engine bay near the fire wall ... It pours out near the headers

  5. #4
    TimmyC is online now Cadillac Owners Connoisseur
    Automobile(s): 2006 STS-V and 2007 STS-V The Murdalac
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    Re: I'm leaking gas

    There is only one fuel line that comes up there. The main line. Sounds like there is cut in it somewhere. Better get that figured out before you have a fire.

  6. #5
    pjeter is offline Cadillac Owners Member
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    I'm gonna get it up on the hoist in the next couple of days and take a look and maybe get a video

  7. #6
    CMNTMXR57 is offline Cadillac Owners Enthusiast
    Automobile(s): 2006 STS-V, 2004 Pontiac GTO, 1999 Chevrolet Suburban LT 4x4
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    Re: I'm leaking gas

    If it is leaking near a header, I hope you're having it towed! Sounds to me like a return line.

    To add humor, my Wife often complains about the same thing with me...

  8. #7
    TimmyC is online now Cadillac Owners Connoisseur
    Automobile(s): 2006 STS-V and 2007 STS-V The Murdalac
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    Re: I'm leaking gas

    The return comes off the filter/ regulator near the right rear wheel. Only the main line goes forward from there.

  9. #8
    CMNTMXR57 is offline Cadillac Owners Enthusiast
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    Re: I'm leaking gas

    There is no return from the fuel rail? I can't say I've actively researched our fuel system on this car.

  10. #9
    TimmyC is online now Cadillac Owners Connoisseur
    Automobile(s): 2006 STS-V and 2007 STS-V The Murdalac
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    Re: I'm leaking gas

    No return from the rail.

  11. #10
    pjeter is offline Cadillac Owners Member
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    Thread Starter
    I found the leak seems to be coming from the top of the injector. I couldn't see it at first because the intake was blocking it

  12. #11
    rbzstsv is offline Cadillac Owners Fanatic
    Automobile(s): stsv
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    Did you properly install the metal clip that holds the injector in place on the rail?

  13. #12
    PGA2B's Avatar
    PGA2B is online now Cadillac Owners Connoisseur
    Automobile(s): Black Raven STS V
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    Re: I'm leaking gas

    Check for a pinched or nicked "O" Ring.

  14. #13
    rbzstsv is offline Cadillac Owners Fanatic
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    Any luck figuring it out?

  15. #14
    Psycho-albanian is offline Cadillac Owners Fanatic
    Automobile(s): STS_V
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    Re: I'm leaking gas

    Metal clip was the culprit replaced all of them.

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