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Low coolant

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Seksprius, Aug 16, 2024 at 11:39 AM.

  1. Seksprius

    Seksprius New Member

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    Location:
    Franklin, TN
    Vehicle:
    2010 Prius
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    N/A
    Hello all,
    Long term lurker first time poster. This is my second Prius. 2010. I’ve had zero issues and have been enjoying it. I then figure out these tend to have head gasket issues. I go to check my coolant and it does look low. What are y’all’s thoughts/ suggestions on the level and how to proceed? The pictures are of it cold.

    Also unrelated it makes this consistent whirring noise for 2 seconds each time even when the car is off. Anybody have experience with this? The noise seems to be coming from right under/ around the smaller coolant reservoir. I have a video but I guess I can’t post it here.
     

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    #1 Seksprius, Aug 16, 2024 at 11:39 AM
  2. Khezekiah

    Khezekiah New Member

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    Feb 6, 2024
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    Location:
    Alabama USA
    Vehicle:
    2015 Prius
    Model:
    Two
    I'd suggest regularly checking the level to see if/how much it is deceasing before worrying if you aren't having any other head gasket symptoms.
    With the noise, do you mean every time you turn the car off for 2 seconds it happens? because your description just says "each time, even when the car is off"
    each time what?
    my car makes a couple second whirling noise when I turn it off. Never had an issue and always figured it was some system discharging/depressurizing.
     
    #2 Khezekiah, Aug 16, 2024 at 5:53 PM
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