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Poor MPG, dealer said to change bearing

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Korozive, Dec 18, 2011.

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  1. Korozive

    Korozive Junior Member

    Joined:
    Dec 18, 2011
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    Location:
    Montreal
    Vehicle:
    2008 Prius
    Model:
    N/A
    Thanks for all your advice, I really appreciate.

    I will probably change the battery before christmas just to be sure. Doesn't look difficult and/or long.

    With the aux. battery unplugged, will I have any problem after beside setting the clock ? Will I have a check engine , radio password to enter or alarm going like vw ?
     
    #21 Korozive, Dec 20, 2011
  2. cyclopathic

    cyclopathic Senior Member

    Joined:
    Apr 15, 2011
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    Location:
    2014 Prius c
    Vehicle:
    2010 Prius
    Model:
    II
    yeah that's battery.

    Unlikely, but it might if battery shorts out completely. And it is cold enough it would be hard to overheat inverter.
     
    #22 cyclopathic, Dec 20, 2011
  3. Kushuk

    Kushuk Junior Member

    Joined:
    Sep 29, 2015
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    Location:
    Virginia
    Vehicle:
    2010 Prius
    Model:
    III
    FWIW: at 143k miles, after changing both rear wheel bearings with NSK KH30040 from rockauto (verified authenticity with WBA application), I'm seeing noticeably improved fuel economy, around 3 mpg +/- (with the second half of the same tank of gas as before), which is good because the loss was unaccounted for over the past few months. I changed them after a 16-hour driving day that resulted in the new sound of a small airplane/motorcycle/helicopter behind me. Cost was under $300, including the pair of bolts/washers/nuts I used to pull the bearings (btw, I had to double up the washers).
     
    #23 Kushuk, May 21, 2024
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