Broken Flywheel Noise

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by TwoPriusInTenn, Aug 26, 2019.

  1. TwoPriusInTenn

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    Does anyone have or know of a video of the noise a broken flywheel makes on a 2010 or 3rd Gen Prius?
     
  2. tankyuong

    tankyuong Senior Member

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    Prob the dreaded engine knocking due to egr circuit being clogged
     
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  3. TwoPriusInTenn

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    Will knocking due to clogged egr disappear with increased rpms/engine speed?

    Knocking on our Prius is happening when the engine kicks in and goes away when the gas pedal is pressed.
     
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  4. sam spade 2

    sam spade 2 Senior Member

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    After a few revolutions and TERRIBLE NOISES, it usually gets very quiet. :eek:

    What makes you think about the flywheel in the first place ??
     
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  5. TwoPriusInTenn

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    The noise happens when the car is idling. It also appears to be on the drivers side.
     
  6. TwoPriusInTenn

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    I have replaced the plugs, coils and injectors. I also cleaned the intake manifold and egr pipe. The egr cooler is so clean, I can see daylight through it! I did clean the egr, but it could be malfunctioning. I have an egr valve on order. It will arrive in a couple days.
     
  7. TwoPriusInTenn

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    One other symptom I was reminded off. Slight smell like rotten eggs = exhaust and catalytic converter.
     
  8. tankyuong

    tankyuong Senior Member

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    My Prius was using coolant and had the same knocking until the crankshaft blew a hole on the side of the engine
     
  9. TwoPriusInTenn

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    Did it display any codes or other signs, other than knocking, before blowing apart?
     
  10. tankyuong

    tankyuong Senior Member

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  11. 4est

    4est Active Member

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    Sounds like a head gasket to me... Unfortunately...
     
  12. TwoPriusInTenn

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    Cause of the problem was a faulty new ignition coil. Replaced with another. Runs smooth.

    Another code flashed up P261B - water pump bad......what are the odds???
     
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  13. mjoo

    mjoo Senior Member

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    Want to update your original thread?

    Pixel XL ?
     
  14. TwoPriusInTenn

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    Turns out the water pump was seized. Crazy, the timing of that!
     
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