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auto transmission down-shifts

Discussion in 'Technical Chat' started by Kingman, May 20, 2013.

  1. Kingman

    Kingman [OP] New Member

    Joined:
    May 20, 2013
    Member:
    #104562
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    Gender:
    Male
    Vehicle:
    2013 sr5 tacoma
    2013 SR5 double cab 5 speed auto trans.; while driving between 20 & 30 mph
    and in D gear, when I let off the accelerator the truck transmission downshifts noticeably by itself. It feels like I am gently braking. This must not be good for fuel efficiency. confused:
     
  2. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
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    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    It downshifts if your foots off the throttle. Keep your foot steady, and stay at a steady speed, and it wont.
     
  3. Kingman

    Kingman [OP] New Member

    Joined:
    May 20, 2013
    Member:
    #104562
    Messages:
    2
    Gender:
    Male
    Vehicle:
    2013 sr5 tacoma
    Thanks Chris4x4, that I understand. What if I am on a secondary road going down a hill and just want to coast to get better gas mileage? My old chevy truck would coast easily down the hill sort of free wheeling. My tacoma acts like it is lightly braking. Maybe it is just the design of the transmission?
     
  4. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,559
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    It mimics the operations of a manual tranny.
     
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