Trouble filling up the gas tank

Discussion in 'Engine & Drivetrain' started by BigClay, Aug 1, 2012.

  1. BigClay

    BigClay Member

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    I am wondering if this is a unique problem to my Yukon XL or if it is wide spread one. When I filling up the tank, the handle clicks off (like it is full) at least five times during a fill up. I know it isn't full because I have only put in about 5 gallons when it happens the first time. I have tried pulling the nozzle out a little, pushing it to the side, pushing it further in, etc. It seems it is worse at gas stations that have a fast flow.

    Anyone else have this problem?
     
  2. BubZX

    BubZX Senior Member

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    its the evap vent valve going out.
     
  3. BigClay

    BigClay Member

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    Thanks. Never heard of that. Where is located and how hard is it replace?
     
  4. BubZX

    BubZX Senior Member

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    got this from another post on the forum. has the part number and it is pretty easy to replace. i did this on a buddies truck and it took less than an hour.



    Here is what is it called and how to fix it:
    AC DELCO 214-2149 [CANISTER PURGE SOLENOID VALVE]
    Features:
    Brand new AC DELCO component with correct connector
    Replaces dealer part numbers: 25932571, 214-2149

    -It started off as 'Tighten Gas Cap" on the DIC, As the solenoid valve was stuck open and would vent the tank so the computer thought the gas cap was loose. I got the solenoid unstuck but later it failed in the close position and would not vent when filling the tank. I too tried everything including turning the nozzle completely upside down but the nozzle would just click off. The day after I replaced it I was able to fill the tank as fast as the pump would go and the engine light went out a day or so later, Have not had the problem ever since.
    ****UPDATE****

    -Problem seems to be solved, I replaced the evap solenoid the day before yesterday and now I can fill the tank as fast as the pump will go. It only cost me $28, The engine light has not shut off yet but that should resolve itself in a few days after I drive it around a bit.

    -It connects to the charcoal canister under the rear by the gas tank, A lot of people refer to it as the evap valve or solenoid.
    -You have to crawl under but its just above and infront of the rear axel.
    -A screw driver to pry up on the tab in the middle of the bracket and the same with tabs on the hose to release it. Then slide the new part back in the bracket and bend the tab back to hold it and make the connections.
    -About 15 minutes of your time and no gas leaking, Also easier to get to if you drop the spare tire.
     
  5. BigClay

    BigClay Member

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    Thanks!

    Will this also fix the fact that I know I have 3/4 tank of gas left, but my gas guage will go from empty (with the light on) back up to 3/4 full from start up to about a minute into a drive?
     
  6. krt

    krt Full Access Member

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    great info, I have the same problem, although it seems that some pumps I can get it full without shutting off if I fill it slow. But that take a while when you have pump 25+ gals in.
     
  7. BigClay

    BigClay Member

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    Just for future searching: I replaced the evap canister and all is well now. Thanks for the good information
     
  8. hidpositive

    hidpositive Full Access Member

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    25+ gallons?! because you have an xl? I wish my 06 denali had a bigger tank then 22 gallons. The 6.0 guzzles and a little bigger of a tank would be very nice on road trips and what not.

    Ive had the issue maybe 2x in the last 2 years. My boss just had it replaced in his 03 2500 with a 6.0. Its a known problem but once it happens more freqently ill replace the soleniod.

    -Gary
     
  9. Wake

    Wake Full Access Member

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    Only 22 gallons? I thought the Denali had a 26 gallon tank like the Escalade does. And then the ESV is even larger, 31 gallons.

    OP, thanks for the tip, I'm going to do a little looking into my friend's 06 Denali, she has issues with the SES light and tighten gas cap messages.
     
  10. doylee4693

    doylee4693 Tahoe User

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    Im having an issue im hoping someone can help.I have a 01 hoe and if I fill it up and dont manually stop it,then when its full enough to click off the pump,as soon as it clicks off gas spews out and all down the side of my truck,maybe half a liter.
     

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