Can't fill the tank after overfilling

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by saneesh8, Nov 19, 2025 at 10:46 AM.

  1. saneesh8

    saneesh8 Member

    Joined:
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    Location:
    Allen, TX
    Vehicle:
    2009 Prius
    Model:
    One
    Hi All,

    After auto shutoff at the pump, i forced it to fill and it took extra 1-1.5 gallons and gas came out from the filler neck. After that, next refuel, it wont take any fuel. The pump cuts off immediately. I guess i ruined the charcoal canister :( or something related to it.

    Looking for Somone Who's Changed a Charcoal Canister | PriusChat post 8 says it can be bad Fuel Cut off valve or Refuel check valve.

    Do i need to drop the tank to check these valves / charcoal canister? Haven't climbed under the car yet, but want some opinion. What would be most common culprit.

    Car is 2009 base model with 156k
     
    #1 saneesh8, Nov 19, 2025 at 10:46 AM
  2. Moving Right Along

    Moving Right Along Senior Member

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    Have you tried fueling the car at multiple gas stations? With my 2009 Prius, there were several times I had to fuel it slowly or rotate the nozzle to get it to fuel. I also once overfilled the tank, but I had no lasting damage from that. The issues I had with filling the tank were present before overfilling and tended to happen the most when I went to certain gas stations.
     
    #2 Moving Right Along, Nov 19, 2025 at 11:01 AM
  3. saneesh8

    saneesh8 Member

    Joined:
    Jul 5, 2024
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    Location:
    Allen, TX
    Vehicle:
    2009 Prius
    Model:
    One
    No.. tried it only at one gas station. Thanks.. i will try at a different one.
     
    #3 saneesh8, Nov 19, 2025 at 11:06 AM
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