Sudden whirring sound from rear and accelerator delay

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Toyonka, Jul 26, 2016.

  1. Toyonka

    Toyonka Junior Member

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    I have a strange issue that just started happening. A whirring sound comes from the vent in the back seat I believe which sounds like escaping Air. Not like the last 2 years I've owned it. At the same time I noticed that the accelerator now takes a second to engage after I hit the pedal from a stop every time. Furthermore the engine seems to be over revving, as if engine braking. I've restarted the car a few times. I've checked all the fluid levels. Any ideas?

    Toyota Prius Five Advanced 2014

    (P.S. Tapatalk integration is currently borken.)
     
    #1 Toyonka, Jul 26, 2016
  2. Raytheeagle

    Raytheeagle Senior Member

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    How many miles on her? Have you cleaned the HV fan?
     
    #2 Raytheeagle, Jul 26, 2016
  3. Toyonka

    Toyonka Junior Member

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    40k. Hadn't cleaned it.

    The problem did not recur today.

    Cheers!
     
    #3 Toyonka, Jul 26, 2016
  4. bisco

    bisco cookie crumbler

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    the fan probably sped up to cool your battery.
     
    #4 bisco, Jul 26, 2016
  5. Toyonka

    Toyonka Junior Member

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    Just weird after 2 years never happening. Thanks.

    Cheers!
     
    #5 Toyonka, Jul 26, 2016
  6. bisco

    bisco cookie crumbler

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    it happens. was it hot out? sometimes it's just because you are in a quiet area not muffling the sound. do you carry pets regularly?
     
    #6 bisco, Jul 26, 2016
  7. Toyonka

    Toyonka Junior Member

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    It's LA so always hot. But we're pretty near the recent brush fire.

    No pets.

    It wasn't a quiet area issue. As mentioned the acceleration suddenly changed simultaneously.

    Not to worry.

    Cheers!
     
    #7 Toyonka, Jul 26, 2016
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  8. bisco

    bisco cookie crumbler

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    all the best!(y)
     
    #8 bisco, Jul 26, 2016
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