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2008 Prius- put into Gear- POP- now only GRINDING noise in D and R.

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by kenneth winter, May 28, 2023.

  1. kenneth winter

    kenneth winter Junior Member

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    2008 Prius 223k

    I put the car in gear, held the brake to charge the hybrid battery before removal.

    POP. The car lurched and lost drive.

    * Now there is a nasty metal, grinding noise from the transmission.

    * When put into N, the grinding sound was less but still there.

    * When put into D/R. It went into d/ R on the dash... but no movement and Grinding sound.

    * I turned it off.

    * I scanned for DCT error codes.. NONE.

    *Restarts fine.
    * Shifts into each drive position fine.
    *When in R or D. stepping on the throttle pedal, the engine starts fine and the grinding noise amplifies with RPM.

    * I also noted that when put into Park. The car rolls freely forward or back.

    It feels like the engine/hybrid drive is disconnected from the axels??

    What do I test next.?


    The grinding noise is a similar noise to when a chain in a 4x4 transfer case breaks..
     
    #1 kenneth winter, May 28, 2023
  2. spdracrm3

    spdracrm3 Member

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    See if one of the axles popped out of transmission or the cardan joint broke.

    SM-G960U ?
     
    #2 spdracrm3, May 28, 2023
  3. kenneth winter

    kenneth winter Junior Member

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    How? jack up and turn Wheels?
     
    #3 kenneth winter, May 28, 2023
  4. kenneth winter

    kenneth winter Junior Member

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    Jacked up each side.. turned the wheels. opposite wheel turned opposite direction.. ?
     
    #4 kenneth winter, May 28, 2023
  5. ColoradoCrow

    ColoradoCrow Active Member

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    That is a good thing. Have you checked the transmission fluid? Your electric parking brake is clearly not working. Sounds like the transmission is between gears. CPS still attached? Not disconnected?
     
    #5 ColoradoCrow, May 28, 2023
  6. TMR-JWAP

    TMR-JWAP Senior Member

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    Here's the Maintenance manual section for the transaxle. Good Luck.
     

    Attached Files:

    #6 TMR-JWAP, May 28, 2023
    SFO likes this.
  7. dolj

    dolj Senior Member

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    Prius does not have a conventional auto transmission so no gears to get stuck in between.
     
    #7 dolj, May 29, 2023
  8. kenneth winter

    kenneth winter Junior Member

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    upload_2023-5-29_9-7-44.png

    My guess is that this chain broke???

    upload_2023-5-29_9-12-26.png
     
    #8 kenneth winter, May 29, 2023
  9. kenneth winter

    kenneth winter Junior Member

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    1. All electronics are working.. gear selection, ICE starting
    2. Trans fluid level good
    3. Trans cooling level good.
    4. No dtc codes/
    5. Just no moving when in R or D.
    6. Grinding sound in all gears and N and Park.

    The Chain is in the top side of the case.
    Does anyone know IF you can see the chain from any fill hole or plate.?
    It can not be see from bottom fill hole..
     
    #9 kenneth winter, May 29, 2023
  10. mr_guy_mann

    mr_guy_mann Senior Member

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    I'm not sure that the chain is your problem. You say the car can be rolled if it's shifted to park. The parking pawl actuator looks to engage a gear on the countershaft driven gear, which meshes with the differential. Something between that and the wheels is broken.

    Really, the practical route is to confirm that the axle shafts are intact to the trans. If so then it's time for a used trans.

    Posted via the PriusChat mobile app.
     
    #10 mr_guy_mann, May 29, 2023
  11. kenneth winter

    kenneth winter Junior Member

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    Good info... How do I test the axles?
    1. I jacked up the car. spun both wheels. Each causes the opposite wheel to spin the opposite direction. pin the other wheel. the other stops..
     
    #11 kenneth winter, May 29, 2023
  12. kenneth winter

    kenneth winter Junior Member

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    New test. Wheels lifted. off ground.

    Shift in to D and R.. Wheels rotate in proper direction?
    Still No park?
     
    #12 kenneth winter, May 29, 2023
  13. kenneth winter

    kenneth winter Junior Member

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    Mystery repair.
    1. Dropped trans fluid - replaced
    2. Dropped trans coolant - replaced
    3. Car on jack stands.. rolled wheel many direction.
    4. Shifted into all gears and rolled wheels.
    5. Put in park, rolled wheels.. Heard a CLICK. and the park brake set.
    6. Started car and now it will go in gear.
    7. Test drove- now it works??

    Happy I am .
    Trust it.. NO.
    What on earth happened?
     
    #13 kenneth winter, May 29, 2023
    bisco likes this.
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