Strange Noises Underneath Driver Dashboard

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by jaqueh, Feb 9, 2015.

  1. jaqueh

    jaqueh Active Member

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    These noises suddenly appeared, and I don't know what is causing them it sounds like a pump or something.

    This is after the car has been running for 4 hours. Climate/fans are off, brake is not pressed, and it's in park.
     

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    #1 jaqueh, Feb 9, 2015
  2. bisco

    bisco cookie crumbler

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    inverter coolant pump going south?
     
    #2 bisco, Feb 9, 2015
  3. jaqueh

    jaqueh Active Member

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    Uh oh. I was about to get the coolant replaced since it's at 130k, and for some reason my mom who was the previous owner never did it at 100k.

    Could it be the water pump also?
     
    #3 jaqueh, Feb 9, 2015
  4. bisco

    bisco cookie crumbler

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    i think thats closer to the front and run by the serpentine belt.
     
    #4 bisco, Feb 9, 2015
  5. nh7o

    nh7o Off grid since 1980

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    I think I might be hearing some clunking sounds, but it is very faint. My guess is the coolant flow control valve. Maybe try again and this time make the recording from the front, with the hood open, with the phone as close to the noise maker as possible.

    Quote from Yogi Berra: "You can see a lot, just by looking."
     
    #5 nh7o, Feb 9, 2015
  6. jaqueh

    jaqueh Active Member

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    So I opened the hood, but could not hear any noises other than inside the car. I recorded a new sound that happens after about 1 minute after the car has been turned off. Also, I do get strange "wah, wah, wah, wah" noises when the car is being driven around; it sounds like the car is trying to pump something, but just isn't able to do so. I'm not sure if all of those noises are related
     

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    #6 jaqueh, Mar 4, 2015
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