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  1. #1

    Talking Gas going into evap box

    I have a 2000 Chevy 3500 Dually and I just put another engine in it 5.L 350 and I now have fuel coming from out he top of the evap box could anyone help me with this problem. I have only gotten to drive the truck for about 100 miles and this problem started
    Thanks in advance for any help in my problem. Also I hope that this is in the correct forum
    Thanks Again

  2. #2


    1st thought is that the fuel lines didn't get plumbed in right. Make sure you got the three lines going to the tank correctly routed.

    2nd thought is that the fuel tank is overfull. If you just filled the gas tank, and you're one of those who likes to squeeze every last drop you can into there, you just may need to drain a little gas out.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  3. #3


    Thank You MrShorty this has happened twice and the first time the gas was on a half of a tank and the next time was when it was completely full so I will check the lines is there any particular place to look up where the lines go my father in law helped me put this back together and we had another person helping also and the other person put the lines back on
    Thank You again

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