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transmission lag

Discussion in '2nd Gen. Tacomas (2005-2015)' started by black cloud, Dec 13, 2009.

  1. Dec 13, 2009 at 5:58 AM
    #1
    black cloud

    black cloud [OP] New Member

    Joined:
    Sep 12, 2009
    Member:
    #22664
    Messages:
    3
    Gender:
    Male
    First Name:
    Paul
    Maryland
    Vehicle:
    09SR5 doublecab
    Had T-SB- 0373-09 ECM Calibration Enhancement to Shifting Performance
    & Smoothness done on my 2009 Tacoma (4000 miles). Seems to have helped the shifting problem with the rpm's going way up when slowing
    down in a turn then getting back on the gas. The dealer tells me the computer now has to lean how I drive. Had this done about two weeks
    ago the problem seems to be coming back. When getting on the gas from a stop the engine is very whinie sounding, I have had better sounding
    4 cylinder vechicals. I'am very dissipointed. Any one else having this
    problem? What does the dealer mean the computer has to learn how I
    drive? Thank You
     
  2. Dec 13, 2009 at 6:08 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
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    106,158
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    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    How is it Lagging?
     
  3. Dec 13, 2009 at 6:18 AM
    #3
    Old Soul

    Old Soul Well-Known Member

    Joined:
    May 9, 2009
    Member:
    #16995
    Messages:
    367
    Gender:
    Male
    NC
    Vehicle:
    09 AC V6 SR5 2WD SWB
    not to many, love it the way it is
    My tsb re-cab is not seeming to hold either. have noticed the 1st and 2nd gear revving engine syndrome creeping back in.

    the vehicles computer now adjusts its "make it go " mechanisms to the drivers' driving habits. in a way it will be able to predict how you will drive and adjust the "make it go" computer chips for best performance of your engine. if you are bi polar then forget about it, the computer will go loony bin on you constantly adjusting until the point of insanity..
     
  4. Dec 13, 2009 at 6:23 AM
    #4
    Joe in the hills

    Joe in the hills Well-Known Member

    Joined:
    May 28, 2009
    Member:
    #17732
    Messages:
    100
    Gender:
    Male
    First Name:
    Joe
    Cleveland, SC
    Vehicle:
    Timberline Mica SR5 TRD Offroad Towing Pk
    TJM Bull Bar Bumper, 7100 Bilstiens on FE, 4 Leaf Spring Retro
    Experienced the same problem and the dealership said new TSB called to add additional transmission fluid, which they did Friday 11-Dec.
    Will know if the problem is fixed by next week with more driving.

    Also requested the TSB 0305-08 Retro for heavier springs and was denied by the dealership and Toyota USA saying it only applied to 05-08 vehicles.
    I intend to fight them on that issue.
     
  5. Dec 13, 2009 at 6:29 AM
    #5
    mgrande

    mgrande iKill

    Joined:
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    Orlando
    Vehicle:
    2011 TRD off road
    Kings, AP 3" leaf pack, timbrens front and rear, TC UCA's, pro comp 7189's, baja ATZ's, CBI sliders and rear, relentless front, dynomax catback
    I'm in the same boat! I'm gonna give my dealership a call monday if I have time.
     
  6. Dec 13, 2009 at 7:11 AM
    #6
    Fortech

    Fortech Well-Known Member

    Joined:
    Mar 31, 2008
    Member:
    #5636
    Messages:
    878
    Gender:
    Male
    CANADA
    Vehicle:
    2005 Toyota Tacoma TRD OR
    Bilstein 5100's, rear TSB, Firestone bags
    I was driving around in my '05 the other night and purposely tried to get it to lag and rev like people describe. No luck - couldn't get the truck to do it.

    Correct me if I'm wrong, but from my understanding it seems that when you slow from normal driving at say a yield sign or something, don't totally stop, but get on the gas again the engine revs to 4K or so and then engages into second gear instead of first?

    I tried this a dozen or so times the other night with varying amounts of throttle and couldn't replicate it. Truck seemed to hold second gear and accelerate smoothly from a slow. Obviously though enough throttle would cause a 1st gear downshift - but it never hesitated between the two.
     
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