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While parked, humming at rear of 2017 Prius Two

Discussion in 'Gen 4 Prius Main Forum' started by Jtimc7, Mar 2, 2019.

  1. Jtimc7

    Jtimc7 Junior Member

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    Location:
    Dallas, Texas
    Vehicle:
    2017 Prius
    Model:
    II
    Any thoughts on what the electrical humming sound I’m hearing underneath, in the rear of my 2017 Prius Two might be?
    The times I’ve noticed it have been several hours after the vehicle has been driven. It lasts for a few minutes and then stops.
     
    #1 Jtimc7, Mar 2, 2019
  2. priusman09

    priusman09 I used to be a TDI

    Joined:
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    Location:
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    2009 Prius
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    It may be an evaporative pump for the fuel system. I believe it is a normal sound.
     
    #2 priusman09, Mar 2, 2019
    Jtimc7 and bisco like this.
  3. bisco

    bisco cookie crumbler

    Joined:
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    Vehicle:
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    Plug-in Base
    Correct
     
    #3 bisco, Mar 2, 2019
  4. fuzzy1

    fuzzy1 Senior Member

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    Is it this, from page 8 of your 2017 Owners Manual?

    upload_2019-3-2_14-19-56.png
     
    #4 fuzzy1, Mar 2, 2019
    kithmo, Jtimc7, alanclarkeau and 1 other person like this.
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