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Thread: Gas gauge
          
   
   

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  1. #1
    Doughnut's Avatar
    Doughnut is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1957 Bel Air
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    Gas gauge

     



    I have a 1957 2 DrHt. 400 cid motor. Turbo 350 trans. The gas gauge goes to full when I fill it up. Instead of metering the fuel level it will just drop to empty when the amount of gas in the tanks drops. There is no in between. Either reads full or empty

    Please help!
    Ralph
    It's not the miles per gallon. It's the smiles per gallon.

  2. #2
    Oldf100fordman's Avatar
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    Car Year, Make, Model: 55 Ford F100 w/390,
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    Sounds like your intank sending unit is bad. It's not messuring the ohms of resistance except at full.
    Duane S
    ____________________________________
    On a quiet night you can hear a Chevy rust

  3. #3
    Doughnut's Avatar
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    Would that be the tank sending unit or at the dash sending unit?

    Ralph
    It's not the miles per gallon. It's the smiles per gallon.

  4. #4
    Oldf100fordman's Avatar
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    The tank sending unit. It creates a resistance measurement that then is read by the dash gauge. If it gets worn it won't make contact and give the resistance.
    Duane S
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    On a quiet night you can hear a Chevy rust

  5. #5
    lt1s10's Avatar
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    Car Year, Make, Model: 1997 CHEVY.S10 LT1-350
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    Re: Gas gauge

     



    Originally posted by Doughnut
    I have a 1957 2 DrHt. 400 cid motor. Turbo 350 trans. The gas gauge goes to full when I fill it up. Instead of metering the fuel level it will just drop to empty when the amount of gas in the tanks drops. There is no in between. Either reads full or empty

    Please help!
    Ralph
    its not but one way to find out for sure. take the fuel gauge wire off of the sending unit at the tank and ground it out, if the dash unite goes to full and then take it off of ground and the dash unite goes to empty then its the tank sending unit bad. by it going to full the way it does pretty much tells you its the tank unite anyway like Oldf100fordman said..
    Mike
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    http://hometown.aol.com/kanhandco2/index.html




  6. #6
    Doughnut's Avatar
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    It's the sending unit! I first grounded the unit went to full. I took the ground off and it went to empty. Thanks you guys I really appreciate it!!

    Ralph
    It's not the miles per gallon. It's the smiles per gallon.

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