Any Help appreciated with diagnosis of engine(?) problem(s)!

Discussion in 'Gen 3 Prius Main Forum' started by Duffydoodle, Aug 11, 2025 at 9:45 AM.

  1. Duffydoodle

    Duffydoodle Junior Member

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    Any help is greatly appreciated!!

    I own a 2010 Prius which was imported to PANAMA from USA 6 months ago.
    Has orginal engine, and parts etc.
    Car was in excellent working order.
    A bit of background:
    Car has just over 200K MILES.
    Before being exported can had:
    1. Regular scheduled maintenance.
    2. New Toyota hybrid battery installed
    3. New Toyota EGR system installed.
    4. Had regular servicing, fluids and filters.

    Car has had regular oil and filter changes 1x since being in PANAMA.

    PROBLEM: Car was being driven and hit HARD into a very deep pothole on right front wheel.
    Also hit under carriage on rim of pothole HARD.
    Car still drives, does not appear to be leaking any fluids. No white smoke, no oil exiting tailpipe, only carbon and bit of H2O.

    Engine is making terrible clunking noises and extreme vibrations (jumping around like a jack rabbit in a coyotes mouth!).

    I would greatly appreciate any ideas as to what is wrong with it before taking into repair shop.

    Please see video attached.
    Thank you for your help and consideration!
     

    Attached Files:

    bisco likes this.
  2. Duffydoodle

    Duffydoodle Junior Member

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    ADDITIONAL INFO ON ABOVE POST.
    check engine light it ON, not blinking.
    Thank you kindly for any help/info.
     
  3. JC91006

    JC91006 Senior Member

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    Did all your problems happen after you hit the pothole? Or they are separate events?

    It seems like the car is misfiring. You should read the codes and see what clues it can give you.
     
    Brian1954 likes this.
  4. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Do you know the miles that occurred at? Any other details, say why components were replaced? Any mention of the intake manifold (has EGR components).
    Always, just during cold-starts, or?
     
  5. Duffydoodle

    Duffydoodle Junior Member

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    Mileage just over 200K, about 216K.
    Replaced the EV battery as precautionary as moving to Panama where it's not as readily avaliable plus was losing mileage on freeway. Had ERG replaced at same time. All done by Toyota. Those components were replaced at approx 198K.

    YES, all occurred after hitting the pothole, everything was hunky_dory before and car was running like a top!
     
    #5 Duffydoodle, Aug 11, 2025 at 3:36 PM
    Last edited by a moderator: Aug 11, 2025 at 11:54 PM
  6. Duffydoodle

    Duffydoodle Junior Member

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    Also there IS NO CODE SHOWING! Just check engine light! I was shocked by that too!
     
  7. Duffydoodle

    Duffydoodle Junior Member

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    Also, and interesting tidbit, when the car was running after the video, I happened to push lightly on the EGR cover and the shaking became.louder and more violent:(!

    Just happened directly after hitting the pot hole. Was driven home. Happens everything when started now. Have only started it twice.since if was driven home 1 mile and parked.
     
    #7 Duffydoodle, Aug 11, 2025 at 3:39 PM
    Last edited by a moderator: Aug 11, 2025 at 11:55 PM
  8. bisco

    bisco cookie crumbler

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    transaxle or axle shaft damage?
     
  9. Mendel Leisk

    Mendel Leisk MMX GEN III

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    @Duffydoodle, hope you don't mind: I've uploaded your video to YouTube:



    Sounds like the usual head gasket, and/or failing damper (between engine and transaxle)
     
  10. douglasjre

    douglasjre Senior Member

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    Sounds like something is broken
     
  11. Grit

    Grit Senior Member

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    Since retrieving check engine light codes isn’t an option to helpNarrow down to troubleshot, it can be anything. Just throw parts at it and see what happens.
     
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  12. ASRDogman

    ASRDogman Senior Member

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    It is ALWAYS a good idea to include ALL the information about an issue in the FIRST post....
    The check engine light does NOT give you a code. You will need a code read for the Pruis to
    get the code. That code could point you in the direction of what the noise is.

    You should also jack the car up and remove the wheel on the side that hit the pot hole and
    inspect everything. If you are not able to do that, then take it to some place that can and will
    hopefully find the issue....
     
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  13. Mendel Leisk

    Mendel Leisk MMX GEN III

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  14. Brian1954

    Brian1954 Senior Member

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    What scanner are you using to check for trouble codes?

    Read the first post and then scroll down to post #37 in this thread, https://priuschat.com/index.php?posts/3246758
    You want to choose a scanner that can communicate with all the ECUs in the car. The Autel AP200 is a good choice.