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Tacoma rolls backwards in drive while stopped on a hill?

Discussion in '3rd Gen. Tacomas (2016-2023)' started by brkncly, Apr 25, 2021.

  1. Apr 26, 2021 at 1:11 PM
    #41
    Rock Lobster

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    All this talk about RTFM, Here it is, directly cut and pasted. If your truck is rolling back I would check to make sure I'm not doing any of the items that would cancel it.





    upload_2021-4-26_15-7-59.jpg


    upload_2021-4-26_15-8-26.jpg
     
  2. Apr 26, 2021 at 1:13 PM
    #42
    Wixo

    Wixo Platinum+ Member

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  3. Apr 26, 2021 at 1:17 PM
    #43
    Lt. Dangle

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  4. Apr 26, 2021 at 1:31 PM
    #44
    ugawino

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    Mods? We don't need no stinking mods.
    No, it's not.

    I've owned a dozen cars, trucks and SUVs (and that many more if I count all my wife's cars) with automatic transmissions over the years and not a one of them has ever rolled backwards before going up a hill.

    You guys need to stop accepting this as a normal attribute of an automatic transmission.
     
  5. Apr 26, 2021 at 1:41 PM
    #45
    farmtacoma

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  6. Apr 26, 2021 at 4:30 PM
    #46
    dfanonymous

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    You’ve never been on stopped on a 30 degree grade. If you had, you wouldn’t be of the same opinion.
     
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  7. Apr 26, 2021 at 5:19 PM
    #47
    wayne0

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    Probably not in your case, but, two footed drivers drive me nuts! Nothing worse than being behind some on going up hill with brake lights on!
     
  8. Apr 26, 2021 at 5:29 PM
    #48
    dfanonymous

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    Yeah, definitely not my case. I don’t even know how you would know your behind a two footed driver vs just a shitty driver.

    I’m just saying when starting from a stop going up a legitimate hill in a automatic I let off the brake while i gas. In a manual, obviously the clutch. I do the same thing wheeling. If you need precision and control on a major incline sometimes that’s what you got to do.
     
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  9. Apr 26, 2021 at 5:39 PM
    #49
    Bleep100

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    This is wrong automatics do roll backwards and that is why they added hill assist . Maybe the dozens of cars you had all had hill assist IDK .
     
  10. Apr 26, 2021 at 5:46 PM
    #50
    gillies66

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    Whether they roll back or not... Nor with my skills or procedure, should my truck make such gawd awful noises when wheeling up hill.
     
  11. Apr 26, 2021 at 5:48 PM
    #51
    Charlie Marlow

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    My old 2011 Nissan Titan would definitely roll back a bit on the boat ramp while the 2017 F150 I had wouldn't roll back on the same boat ramp at all. Of course, now I have to finesse things a lot more at the ramp with the manual transmission, but I manage.
     
  12. Apr 26, 2021 at 7:08 PM
    #52
    RatDaddy

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    You are wrong and you must not understand how TC's work.
     
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  13. Apr 26, 2021 at 8:52 PM
    #53
    farmtacoma

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    He also thinks the world is flat. You can’t win with him. Sadly he’s feeding into all the stereotypes ....
     
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  14. Apr 26, 2021 at 9:21 PM
    #54
    dfanonymous

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    You stationed out in 29?
     
  15. Apr 27, 2021 at 5:38 AM
    #55
    farmtacoma

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    I am a farmer next to the base.
     
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  16. Apr 27, 2021 at 5:50 AM
    #56
    RatDaddy

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    Have been out that way in forever. I always hated the Cholla bushes and there was so many of them in that area. Worse than any cactus that's ever lived.
     
  17. Apr 27, 2021 at 6:38 AM
    #57
    RatDaddy

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    Either that(hill assist) or the cars he's had, had enough torque at idle to overcome gravity and weight of his truck. I have had plenty of vehicles that did not roll back and some mvoed forward. It's all about the amount of torque your engine produces at idle. If you were to take an engine from a Honda S2000 or an old RX7, and mate them to an auto(god forbid), the car would almost certainly roll back in drive due to literally zero torque at idle. On the other hand, you do the same with a big block chevy engine, and you may actually move forward due to lots of low end torque.

    I don't think he understands that TC's are fluid based couplers that lock at a certain point. They have to be in order for your automatic not to stall out at idle in drive. Full lock up can occur anywhere from 1200 to 1400 rpm or more. Before that, there is partial fluid lockup, but tons of slippage from the fluid. This keeps the engine from stalling which it would surely do if it was fully locked in gear like a manual. An F350 with a 900 ft lb of torque diesel will not likely roll back since it has so much torque at idle. Smaller engines with low torque at idle will roll back. Put a loaded trailer on that F350 and it will likely roll back as the force of the weight may overcome the torque at idle of that engine.
     
  18. Apr 27, 2021 at 6:44 AM
    #58
    stevesnj

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    Not enough hydraulic pressure pumping at idle to hold the weight of the vehicle on an incline that's all. It won't harm anything unless you go a long way backward in a forward gear. A slight roll back is fine.
     
    Last edited: Apr 27, 2021
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  19. Apr 27, 2021 at 6:45 AM
    #59
    Lt. Dangle

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    It just shows that there are very few new ideas and fights in the 3rd gen section.
     

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