no fuel coming out of tank.

Discussion in 'General Ranchero Help' started by FordR500GT, Nov 4, 2017.

  1. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    The tank is half full, but when I went to pull the fuel line off the bottom of the tank, it immediately sucked tons of air into the tank and no gas dripped out. Opened the gas cap, still now flow. Vent problem? Pickup tube clogged?
     
  2. ribald1

    ribald1 Banned PLATINUM MEMBER

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    Vent problem for sure.
    The anti-siphon loop prevents gas from coming out when the cap comes off.
    The pick up is not blocked, or air would not have rushed in.
     
  3. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    How should I go about chasing the issue? I'm gonna pull out the sending unit and clean it up because it isn't working as it should
     
  4. ribald1

    ribald1 Banned PLATINUM MEMBER

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    Don't mean to be a pain, but;
    How do you know the sending unit isn't working as it should?
    You know you have a vent problem, correcting that needs to be done anyway, so why not fix that?

    Over analyzing a situation is common, however, if rather than heading to the end first one fixes problems as they are encountered, that usually ends up being the quickest and cheapest road to a solution.
     
  5. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    Sending unit isn't working because it is stuck. I tap the housing, and the gauge reads correct, but if the fuel level changes, it gets stuck again. It's quite annoying, because at first, I thought someone had stolen the gas as the gauge read E, but it wasn't floating up in the tank
     
  6. ribald1

    ribald1 Banned PLATINUM MEMBER

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    Doesn't it correct while driving then? If the issue is that it takes excessive time to read correctly, then the gauge is the problem.
    A sticking sender should resolve after the first bump in the road and can't go below the fuel level and return.
     
  7. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    Can't drive it yet, so I don't know. Hasnt been on the road since 2015
     
  8. Huevos

    Huevos In Maximum Overdrive

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    Sounds like a good idea to pull the tank, put in a new sending unit and sock, new fuel lines and filler hose.
    Not hard to do.
     
  9. ribald1

    ribald1 Banned PLATINUM MEMBER

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    In that case, I would expect it to stick. While fuel is the lubricant for the axle it operates on, fuel becomes sticky varnish when left exposed to air for a period of time. Luckily, over a short time, new fuel dissolves the varnish.
    You're vent problem is likely created by a modern cap, as I described earlier, that needs to be drilled.
     
  10. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    Already redone all of the lines today, installed electric pump,and replaced the fuller hose but can't get fuel to the pump. Tried taking the gas cap off. Nothing. Gas will come out of you blow air into the filler neck, but only then. Last week, I pulled off the fuel line and plenty of gas came out, but now anir only goes in.
     
  11. ribald1

    ribald1 Banned PLATINUM MEMBER

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    You misspoke, right?
    The fuel line is at the top of the tank.
     
  12. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    I think he's referring to the outlet line, which on the '72-'79 is at the lower left side, below the fill.
     
  13. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    Yep (I think that is where the electric pump should be hooked to?) Anyway, I got the tank out early this morning. Heard my fair share of sand floating in there. Pulled out sending unit and everything else. I'm currently waiting for the inside of the tank to evaporate whatever gas/rusty gunk that will evaporate, then I will clean it out with some acetone and a pressure washing (Maybe put a stainless steel chain inside and slide it around to break up the rust?)
     
  14. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    2017-11-05-12-29-45.jpg 2017-11-05-12-28-58.jpg 2017-11-05-12-28-50.jpg 2017-11-05-12-30-17.jpg 2017-11-05-12-29-56.jpg
    Put a borescope cam inside the tank. Here's what it got
     
  15. Huevos

    Huevos In Maximum Overdrive

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  16. 1965 Ranchero 66G

    1965 Ranchero 66G In Maximum Overdrive Unubtanium Member

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    What year is it ? You have multiple, If it was mentioned I missed it.
     
  17. LSChero

    LSChero In Maximum Overdrive PLATINUM MEMBER

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    Yikes!Hope thats caked on sludge,not rust pits.Tanks available 74-79,a little larger but will fit in 72.Was the pick up tube filter intact?
    This is what mine looked like.
    [​IMG]
     
  18. CJ Guy

    CJ Guy In Maximum Overdrive

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    You do remember you have a rebuilt tank I had for the GT.
     
  19. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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  20. FordR500GT

    FordR500GT In Maximum Overdrive BRONZE MEMBER

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    It's a 72
     

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