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  1. #61
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    Enkeiavalanche's Avatar
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    Not sure on that one.. I did do a write up and pics on how to replace it on the newer GM's.. Did you check all other hoses and Gas cap?
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  2. #62

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    Yes i checked it all, even took a wire brush around the gas neck around the cap...that part in the picture is between the cab and box ontop of frame rail...im selling my truck but have to get this fixed so it will pass an etest, im buying a newer gmc

  3. #63

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    Quote Originally Posted by Joejoe View Post
    Hey guys, newbie here lol...i have the dreaded p0446 code and i wanna try blowing it out before spending money...i think i found the vent valve but it looks different than all the pictures i seen, i have a 2001 sierra reg cab long box...

    Here is a pic
    That looks the same as my 2001 silverado. I just took it off, it was a bear, real tight space. I ended up removing the tube from the charcoal box and taking it out as tube and evap. Lots of dirt in there. Hoping the blow out solves my p0446.
    2001 Silverado 1500 4.8L extra cab 4x4

  4. #64
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    Quote Originally Posted by skipraf View Post
    That looks the same as my 2001 silverado. I just took it off, it was a bear, real tight space. I ended up removing the tube from the charcoal box and taking it out as tube and evap. Lots of dirt in there. Hoping the blow out solves my p0446.

    I tryed the Blow out and it did not work The part was like $65.00 repair about an hour Done..

  5. #65

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    I have a 2010 Silverado with the P0446 code, does this year have the same thing where I can blow it out and possible clear the code?

    Thanks,

    Dan

  6. #66
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    I would just replace it.. Not hard of a job Takes about an hour IF you lower your Extra tire..I have a FULL write up on here somewhere on here..

  7. #67

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    I blew out the little filter and the line and unhooked the negative battery cable and the light is off!!

    Thanks for the help!!

    Jax

  8. #68

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    How about a p0442?
    00 Chevy Tahoe LT, 5.3 4x4

  9. #69

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    This thread gets a lot of pageviews, how many people have read this and gotten valuable information from it?

    Steve
    10 Chevy Traverse LT AWD
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    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
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  10. #70
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    I think you should merge this one with the Pics I took of the fix..

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