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My gas gauge isn't filling up all the way but the tank is full??

Discussion in 'Gen 2 Prius Fuel Economy' started by Lance1984, Sep 5, 2024.

  1. Lance1984

    Lance1984 New Member

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    2009 Prius
    Model:
    Four Touring
    Help Im a 2 wk old pruis owner 2009
    My gas gauge isn't going all the way up when the gas is all the way to the neck of the tank
     
  2. MAX2

    MAX2 Member

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    There is no universal method.

    If you fill up with a little fuel, the readings do not change.

    Sometimes even after filling up, they remain at the same level until you drive some distance.
    The sensor is located inside a bubble, which is hidden from the outside by the tank itself. There is no access to it.

    You can rock the car and the sensor will stop sticking.
     
  3. Lance1984

    Lance1984 New Member

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    Sep 5, 2024
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    Location:
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    Vehicle:
    2009 Prius
    Model:
    Four Touring
    I've driven 50 miles and it's still showing not full??? I went from a 1 ton long bed 4 door diesel so I am new at this thanks for the input
     
  4. bisco

    bisco cookie crumbler

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    Gen 2 has a tank bladder which can cause fueling issues.
    You may never know how much fuel is in the tank without driving until empty and seeing how many gallons it will take