Got the C1391 Pump constantly buzzing every 4 seconds

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by johnnychimpo, Dec 25, 2021.

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  1. johnnychimpo

    johnnychimpo Active Member

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    I can order a new accumulator for about 250 and I got scan tool. is there a how to to bleed the air out.
    from what I have read I need to replace the accumulator and then bleed the system is this correct for C1391? and at 200k not likely covered under any recall correct?
     
    #1 johnnychimpo, Dec 25, 2021
  2. 2010moneypit?

    2010moneypit? Active Member

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    Correct not covered by warranty at 200k. It is my understanding it’s covered 150,000.

    You should be able to find a video on YouTube how to bleed the system or maybe somebody else can chime in.
     
    #2 2010moneypit?, Dec 25, 2021
  3. Tim Jones

    Tim Jones Senior Member

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    Isn't that covered under the recall?
     
    #3 Tim Jones, Dec 25, 2021
  4. johnnychimpo

    johnnychimpo Active Member

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    yes but I think 150k is correct not covered after that I believe. can anyone who has been down this road 1.confirm on the recall 2. point me in the right direction of a quality video to bleed the system?
     
    #4 johnnychimpo, Dec 25, 2021
  5. Tim Jones

    Tim Jones Senior Member

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    They fixed mine with over 250,000...... time limit runs out the first.
    Take it to the dealer....... they charge diagnostic but don't charge if correct codes thrown.
    And I'm not joking.
     
    #5 Tim Jones, Dec 25, 2021
  6. johnnychimpo

    johnnychimpo Active Member

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    Really?? what code did they pull and what did you need to say for them not to squirm out of doing it?
    Also Im afraid they wont touch my car as I upgraded to a gen 4 engine.
     
    #6 johnnychimpo, Dec 25, 2021
  7. Tim Jones

    Tim Jones Senior Member

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    The code is online......I don't remember..........they were happy to do it.
     
    #7 Tim Jones, Dec 25, 2021
  8. Tim Jones

    Tim Jones Senior Member

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    Engine shouldn't matter......has nothing to do with the brakes
    They don't look...just change the 2 parts
     
    #8 Tim Jones, Dec 25, 2021
  9. johnnychimpo

    johnnychimpo Active Member

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    well I will call them first thing on monday.
     
    #9 johnnychimpo, Dec 25, 2021
  10. Tim Jones

    Tim Jones Senior Member

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    Look for the correct codes to show up. Know that before you call.
     
    #10 Tim Jones, Dec 25, 2021
  11. Tim Jones

    Tim Jones Senior Member

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    Do you have a bunch of dash lights on?
    I did with very hard brake pedal.
     
    #11 Tim Jones, Dec 25, 2021
  12. johnnychimpo

    johnnychimpo Active Member

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    Well the code im getting is the C1391.
     
    #12 johnnychimpo, Dec 25, 2021
    Tim Jones likes this.
  13. Tim Jones

    Tim Jones Senior Member

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    DO NOT clear the codes........
    Merry Christmas
     
    #13 Tim Jones, Dec 25, 2021
  14. Tim Jones

    Tim Jones Senior Member

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    I believe that's the correct code......Did you get addition dash lights like the traction control?
     
    #14 Tim Jones, Dec 25, 2021
  15. johnnychimpo

    johnnychimpo Active Member

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    yes hard break abs and break light came on I think also the ! came to
     
    #15 johnnychimpo, Dec 25, 2021
  16. Tim Jones

    Tim Jones Senior Member

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    Your good to go!
    Get over Monday Morning before they open!
    MERRY CHRISTMAS
     
    #16 Tim Jones, Dec 25, 2021
  17. Tim Jones

    Tim Jones Senior Member

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    And they will tell you to bring it in.... they will not tell you anything until diagnosis.
    Get there early.......this is a 22 to 2500 dollar repair.
     
    #17 Tim Jones, Dec 25, 2021
  18. johnnychimpo

    johnnychimpo Active Member

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    Just to make sure even with this? upload_2021-12-26_10-14-17.png upload_2021-12-26_10-14-17.png
     
    #18 johnnychimpo, Dec 26, 2021
  19. Tim Jones

    Tim Jones Senior Member

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    #19 Tim Jones, Dec 26, 2021
  20. rjparker

    rjparker Tu Humilde Sirviente

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    You need a dealer to record the codes. Hopefully your modified 2010 can sneak in.

    If not, some with a confirmed dealer diagnosis have appealed to Toyota Corporate. Of those a handful have received help.
     
    #20 rjparker, Dec 26, 2021
    Last edited: Dec 26, 2021
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