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Help! My car will not allow me to put gas in it.

This is a discussion on Help! My car will not allow me to put gas in it. within the General Help forums, part of the LSx Technical Help Section category; I've got a 2000 Z28 and for some reason the gas tank is building up pressure to the point it ...

  1. #1
    Junior Member
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    Mystic Teal
    2000 Z28

    Help! My car will not allow me to put gas in it.

    I've got a 2000 Z28 and for some reason the gas tank is building up pressure to the point it will not allow me to put any gas in. The fuel system is completely stock. I've been snaking a rubber hose down the filler neck to press the check valve on the tank and relieve the pressure just to put gas in it each time. Without doing this gas just blows back out. I'm thinking perhaps the vent tube on the sending unit or line is plugged but before I drop the tank down I thought I'd ask if anyone else has had this issue and how they resolved it. I noticed it only seems to happen below a quarter of a tank and I suppose I could always make sure I have at least that much in the tank but I would prefer to correct the issue. Any help/suggestions would be greatly appreciated. Thanks ~Mark

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  3. #3
    autoconnectionllc.com 02transamce's Avatar
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    2007 Corvette
    Ebony

    Back in the day when I wrenched for Ford,I had a Ranger come in,issue was extremely long time to fill the truck with fuel,customer said the gas filler would keep clicking off after only a little gas was put in.long story short,replace fuel filler hose,fixed the issue
    Posted via Mobile Device

  4. #4
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    Mazda has a similar recall right now for spiders making webs in the filler vent tube. We have to stick a dryer brush into the vent tube to check for webs. If we find any webs, we have to order a new tank as the pressure builds up and neither fuel can be pumped in, and the tank expands.

  5. #5
    autoconnectionllc.com 02transamce's Avatar
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    2007 Corvette
    Ebony

    recall for spiders,niiice!

  6. #6
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    Quote Originally Posted by 02transamce View Post
    recall for spiders,niiice!
    Yep.

    I thought it was complete B.S. til my manager told me what the recall was about.

  7. #7
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    Mystic Teal
    2000 Z28

    Thanks to everyone for your help. I removed the filler neck and flushed it out, removed the line to the evap canister and flushed it out and it appears to have cured the problem. Thanks again ~Mark

  8. #8
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
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  9. #9
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    there's also a purge solenoid that could be your issue so if the issue comes back that would be the next place I would look.


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