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  • Surfdancer
    replied
    Re: cng leak

    Don't plug those holes!

    If gas is leaking out of them, it's because the rubber diaphragm is leaking. Plugging those holes will allow the cap to pressurize in an upward spiral and possibly develop sufficient pressure to grenade off the regulator.

    Leave a comment:


  • burnsie
    replied
    Re: cng leak

    Thanks for everybodys help, Im going to try taking it off and resealing it, guess it cant hurt. If that doesnt work, I guess I will have to get a new one. I will keep you updated on how it goes.
    Thanks again
    burnsie

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  • j03j03
    replied
    Re: cng leak

    Are you sure its coming from the holes? I have an older version of the regulator. Mine was leaking from the main connection. Where the two pieces screw together. So i took mine off and unscrewed the two pieces and put some thread sealant on then put them back together. Haven't had a problem since. The diaphram inside is getting old and hard and doesn't seal quite right.
    Good luck!

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  • cngmike
    replied
    Re: cng leak

    You will have to replace the regulator. It will cost you $500 to $900 for the part. check with your local NGV repair shop.

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  • burnsie
    replied
    Re: cng leak

    Ok so that is my high pressure regulator, thanks. Is it common for these to leak? What can I do about it? Could I just plug up those holes? That is where it seems to be coming from. I wouldnt think so because they must be there for a reason. ANy help would be appreciated. Thank you
    Burnsie

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  • cngmike
    replied
    Re: cng leak

    That is the high pressure regulator.

    Leave a comment:


  • burnsie
    started a topic cng leak

    cng leak

    Hello all, great forum thank you for all the great info.
    I have a 99 e350 bi-fuel van. About a month and a half ago I noticed a very slight natural gas smell. In the past couple weeks it has gotten very bad, I have to keep the windows open. I traced it down to what I think is the compuvalve, its behind the engine above the transmission. It says GFI model P75-100. The leak seems to be coming from the small holes on the right above the warning sticker. I attached a picture hopefully it works. Maybe its not coming from these holes, I believe that there are three of them that go around the compuvalve. What do they do, could I just cover them up? Maybe I should to see if that stops the leak. Anyway if anybody has any ideas let me know. Thanks for the great site, and thanks for looking.
    Burnsie
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