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Under dash sound...

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Fishcrab, May 31, 2015.

  1. Fishcrab

    Fishcrab Member

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    Nothing alarming, hehehe.
    When I put my fob in and waiting for ICE to kick in, I here this weard sound under dash.
    I think it's pretty innocent, it sounds like a weak car horn that is not getting any juice.
    It's intermittent and it seems right in front of me under dash, or firewall .
    The car starts fine and runs fine. Just wondered if anyone else was intertained with this .
    It happens usually after car has set for maybe 3 days.
     
    #1 Fishcrab, May 31, 2015
    Last edited: May 31, 2015
  2. Fishcrab

    Fishcrab Member

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    Must be slow night...
     
    #2 Fishcrab, May 31, 2015
    Last edited: May 31, 2015
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Could this be the coolant heat recovery system pump which runs for a few seconds upon startup and shutdown? The pump is located in the driver's side front fender.
     
    #3 Patrick Wong, May 31, 2015
    Fishcrab likes this.
  4. Fishcrab

    Fishcrab Member

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    Maybe so Patrick, it always goes away, must be related to very cold start. That's the only time it mainly happen.
    Thanks
     
    #4 Fishcrab, May 31, 2015
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