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Thread: Evap line on obs

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  1. #1
    Join Date
    Sep 2011
    Location
    Atlanta Ga
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    Evap line on obs

    Haven't seen any threads where this is addressed. My 96 tahoe has a hard plastic line from The fuel tank to right below the driver side battery tray. I put a vacuum cap on it for now but I'm concerned if this will be enough. Anyone done anything about this?

  2. #2
    Join Date
    Jan 2009
    Location
    Rockwall, TX
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    Think I just deleted it and put a cap on it, would like to know if it's bad this way or not

    1989 RCSS 5.3/4L60E swap
    - 224/230 .581.591 112lsa,
    - 3200 Stall
    - DJM 4/6 drop
    - Nelson Tuned

    Building the truck GM never did..

  3. #3
    Join Date
    Dec 2004
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    "ALisSa1 Silverado"
    1990 Chevrolet RCSB 2002 Chevrolet Camaro LS1/4L60E
    Scrimpin Ain't Easy
    ( . Y . )


  4. #4
    Join Date
    Sep 2011
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    Atlanta Ga
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    Quote Originally Posted by Chevy-Art View Post
    Why thank you!!! I will be routing it into the intake.

  5. #5
    just when i have a question, BAM!!!!! you ask it, LOL!!!!
    now i need to figure how to tap into my intake tube.

  6. #6
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    Quote Originally Posted by RPM Graphics View Post
    just when i have a question, BAM!!!!! you ask it, LOL!!!!
    now i need to figure how to tap into my intake tube.
    LOL I'm probably going to get a barbed fitting and just drill and tap the intake tube and run fuel hose from the evaporate line

  7. #7
    Join Date
    Sep 2011
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    I wonder what the difference would be putting it before or after the maf

  8. #8
    Join Date
    Feb 2012
    Posts
    108
    it wont be good, as your check engine ligth will turn on , it will be as if the maf wasnt working

  9. #9
    after looking at the old parts mine went into the canister but didn't go anywhere after that. my canister has i little breather looking cap on it.
    maybe i'll just leave the canister for now.

  10. #10
    Join Date
    Jun 2009
    Location
    Caledonia, MI
    Posts
    322
    I deleted all of that (canister and line running to tank) and have about a 10" hose from my tank that sits inside the rear frame rail to help the tank breathe
    Silverado Z71 10" Lift COMPLETE 6.0/4L80E PRC 2.5 Ported LS6 Heads 228r Comp Cam 3200 CIRCLE D Stall LS7 Lifters ARP Bolts SLP Oil Pump and Double Timing Chain 160 T-Stat 3" SLP Loudmouth Electric Cutout Walbro 255 Pacesetter Longtubes MSD Starter NELSON Harmess NELSON Street/Strip Tuned ECM MSD Wires LS1 Throttle Body Braided Lines Spectre CAI 4.56 Gears Detroit Locker 14 bolt http://www.ls1truck.com/forums/lsx-t...wap-build.html

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