Intermittent stumbling/shaking on acceleration from stop

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Jared, Aug 29, 2016.

  1. Jared

    Jared Member

    Joined:
    Jun 2, 2005
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    Location:
    Long Island
    Vehicle:
    2010 Prius
    Model:
    IV
    Hi Everyone,

    Just wondering if others have had this problem;

    2010 with 166k miles.
    Runs perfectly almost all the time but will occasionally be very rough and unbalanced on acceleration from a stop for a few seconds, then runs well after gaining speed.
    No engine check light on.
    Most noticeable in stop and go traffic.
    Mechanic suggested it might be fuel pump but I am not handing over $900.00 unless necessary.
    Car just completed 2,000k trip and climbed mountains no problem.
    Could this be a transition problem as motor starts up? It seems to happen most often when the battery charge is low.

    Thanks.

    Sorry - should be in gen 3 forum.
     
    #1 Jared, Aug 29, 2016
    Last edited: Aug 29, 2016
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    111,565
    50,804
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    hard to say with no trouble codes, are your mpg's holding up?
     
    #2 bisco, Aug 29, 2016
  3. robsnyder20

    robsnyder20 Active Member

    Joined:
    Aug 13, 2012
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    Location:
    SW Florida USA
    Vehicle:
    2016 Prius
    Model:
    Three
    I never owned a prius before my 2016 before but a couple days ago I took my car on a ferry to a small island and was cruising at very low speeds and when the traction battery fell to two bars, it was a little rough at 1-3 mph but leveled out once going past 5-7 MPH. My car always seems to run in EV at these speeds so it was very odd to start so roughly.
     
    #3 robsnyder20, Aug 29, 2016
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