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Fuel Gauge

Discussion in 'Early CJ5 and CJ6 Tech' started by Dble414, Sep 7, 2008.

  1. Sep 7, 2008
    Dble414

    Dble414 66-CJ5 Dauntless

    NH
    Joined:
    Sep 1, 2008
    Messages:
    13
    My Fuel gauge does not work in 66 cj5. I have taken the seat off to get to the top of the gas tank to look at the sending unit. There is one wire for the ground and one wire that goes to the Gauge. Is there any way of checking to see if the Unit is bad? It is not the original tank, someone replaced it with a Plastic Tank. Where would i go about finding a new unit if need be and how do i make sure i get the right one. Thanks for the help guys
     
    Dble414, Sep 7, 2008
    #1
  2. Sep 7, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Check the Ohms with a mulltimeter. Move the float up and down.

    The Ohm readings are posted here in the forum in the past.
     
    sparky, Sep 7, 2008
    #2
  3. Sep 7, 2008
    Dble414

    Dble414 66-CJ5 Dauntless

    NH
    Joined:
    Sep 1, 2008
    Messages:
    13
    I did a search on the Ohm Readings and came up with nothing
     
    Dble414, Sep 7, 2008
    #3
  4. Sep 7, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    sparky, Sep 7, 2008
    #4
  5. Sep 8, 2008
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,362
    You could check the gauge by just grounding the sending unit wire. If working the gauge niddle will go to full.
     
    scott milliner, Sep 8, 2008
    #5
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