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Whistling sound comes from engine

Discussion in 'Gen 3 Prius Technical Discussion' started by Princedunet, Jan 27, 2018.

  1. Princedunet

    Princedunet Junior Member

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    Hey bro, if you see the video I attached, the sound is same as the last sound of the inverter in the video, and it started I accelerate at speed more then 50km/h, maybe someone else can’t notice this sound but for me I can hear it, is not so loud but it exist, hope it a normal sound and not an issue
     
  2. Grit

    Grit Senior Member

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    Watched it. It's the same as mine, this whine has been posted many times. It's normal. Same for el converters
     
  3. Princedunet

    Princedunet Junior Member

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    so it’s normal. Thank you all
     
  4. Princedunet

    Princedunet Junior Member

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    Hey guys, I’ve record a video that shoes clearly the sound.
     
  5. Princedunet

    Princedunet Junior Member

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    Hey guys, Im here again and this sound still anoying me too bad, I could make a video, If you can hear the sound , it starts from sec 22, listeen carefully and tell me what do you think

    https://youtu.be/p3Nr_ULN00c
     
  6. Grit

    Grit Senior Member

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    Sounds like the interver, louder than usual. I was thinking a quieter whistle but that's way louder than mine and most gen 3 I've test driven
     
    Raytheeagle likes this.
  7. Princedunet

    Princedunet Junior Member

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    So it should be replaced or repaired and how long the inverter resist. And what do you the probleme comes from? Is the inverter coolant because I never change the coolant water . My prius is 152000km
     
    #27 Princedunet, May 12, 2018
    Last edited: May 12, 2018
  8. Erman Atalay

    Erman Atalay New Member

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    my car is almost 190k miles I have the same problem . Please keep the post updated.
     
  9. Erman Atalay

    Erman Atalay New Member

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    I have 2013 Prius with 220k and I 've been hearing the same loud whistling from the engine. it started around 180k and it wasn't that loud when it first started. I thought it might be the pump and today I decided to change it myself. I was able to replace the pump without removing the inverter. I just lifted the inverter put a piece of wood underneath just like someone else from another post. After that, everything was normal the sound was gone. I drove the car for about half a mile for a quick tour nope no noise or nothing. then I park the car opened the hood and I opened the inverter coolant lid just to see if there is any movement in the coolant. there was no movement. (by the way, I've never seen the coolant moving ever, not with the old pump neither with the new one) Then something strange happened. I heard a puffing noise sounded like a pressured air leaked instantly from somewhere it shook the engine a little bit too. it was the same time me opening the lid and the sound came right then. I don't know what it was. And then the noise was back the car started whistling again just like before. Tomorrow I m going to check the fuse box to see if anything wrong there. I will try to figure out why the pump is not moving the coolant. I will keep posting.
     
  10. Brocklyn

    Brocklyn New Member

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    did you ever find a remedy for your whistling problem? My Prius has just started doing the same thing. Thanks!
     
  11. Genc

    Genc Junior Member

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    Did you figure out what the issue was since my car started doing it aswell? just 96.000km Gen 3