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2012 Towing

Discussion in 'Towing' started by rmerchant3, Feb 12, 2012.

  1. Feb 12, 2012 at 6:48 AM
    #1
    rmerchant3

    rmerchant3 [OP] Insert nonsense here

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    Thought I would shed some light on the 2012's and their towing capabilities. I haven't towed anything big yet. Just my full size 5X8 trailer with 15" wheels and one motorcycle on board. To be honest, I was a little frustrated coming from a manual to this new automatic. I kept it in D at first since the total weight didn't exceed 1500 lbs. Here in SC we don't have steep inclines but there is the constant up and down of hills on the interstate. Every time I started to climb a hill, the transmission would kick out of lock up for a few seconds and then downshift to forth when it realized it needed more power to maintain speed. It got so frustrating that I eventually manually started to throw it into 4th before I approached a hill. This was all on cruise control of course.

    So, on the way back I kept it out of cruise and just kept constant pressure on the pedal. I let the truck slow down climbing hills as I felt it was better for it to do that then to constantly be downshifting all the time. It was aggravating to say the least.

    Anyone one else seem to have this happen to them. I mean I understand why it does it, but it is just annoying.
     
  2. Feb 12, 2012 at 7:24 AM
    #2
    Tacoma Mike

    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    Yea it happens to everyone in one form or another. IMO i think the reason for this is simply EPA ratings. They are trying to get the max mileage possible and the lowest emissions. So they try to get the trans locked in as fast as possible and the rpm down. The result of this it "Trans Hunting" as it's constantly trying to get back to max efficiency. People are still bitching about fuel mileage in these trucks so if it was possible to revamp the software to make it more of a work horse instead of a cruiser, all hell would break loose.
    Your going to have to drive it with your head instead of the software in the ecu. Your starting to adapt your driving to it.
    My old Dakota has a auto with a OD lockout. It never hunts. It also gets half the fuel mileage as my Tacoma. Trucks are not what they use to be anyway.
     
  3. Feb 12, 2012 at 7:36 AM
    #3
    rmerchant3

    rmerchant3 [OP] Insert nonsense here

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    It wasn't the locking and unlocking of the TC that was really the issue. It was more so the constant down shifting into fourth at every hill. It would only fall out of lockout for about 2 seconds before it said, "oh wait, we still need more power to remain at 60mph...time to downshift into fourth!"

    It's a double edge sword. In my manual if it wasn't a steep hill I (or the cruise) would just give it more gas to remain at the set speed. This drank the gas as it was throwing all the fuel it could at it to try and remain at the set speed without being able to downshift. But then again, I'd rather have bad gas mileage than an over worked auto transmission from downshifting all the time. It's a lot cheaper and easier to put more gas in her than to rip the tranny out and rebuild it.
     
  4. Feb 12, 2012 at 7:50 AM
    #4
    Tacoma Mike

    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    Yea they downshift easy. And the process is unlock and then down shift. And i agree in your reasoning. I've talked to the reps that come in here and it's all about the EPA. I even asked about a tow haul button and that got me nowhere.
     
  5. Feb 12, 2012 at 8:00 AM
    #5
    KenLyns

    KenLyns 8.75" Third Member

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    You are not supposed to be in "D" when towing, according to http://www.tacomaworld.com/forum/towing/4031-tacoma-towing-bible.html#post35021. 5th gear in the auto is pretty tall, taller than the 6th gear in the manual actually. Just drive in "4" when towing. It's the equivalent of turning off overdrive in older transmissions. Hell I drive in "4" most of the time in the city to keep the revs up for good throttle response and better engine braking.
     
  6. Feb 12, 2012 at 8:02 AM
    #6
    rmerchant3

    rmerchant3 [OP] Insert nonsense here

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    That's disappointing. It would be nothing more than a simple reflash to change it from shifting so much too. I will continue to "make" it drive as I need it to. Thanks for the replies too.
     
  7. Feb 12, 2012 at 8:06 AM
    #7
    Tacoma Mike

    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    In some cases it wouldn't surprise me if u got better mileage locally
     
  8. Feb 12, 2012 at 8:13 AM
    #8
    KeithB

    KeithB Well-Known Member

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    I end up putting it in 4th for local driving most of the time. Dealer said I would get better milage in D but I don't see a difference in mgp. I only see the engine having a hard time when I get behind someone doing 25 and the tranny is still in what feels like 5th at less than 1000rpm. Pop it into 4th and the rpms jump up to near 2000 and I get much better response from the skinny pedal.

    Also, I do most of my towing in 4th as well. Unless it's a long flat or downhill stretch, then I will jump to "D"
     
  9. Feb 12, 2012 at 8:16 AM
    #9
    DEEVON911

    DEEVON911 Semi-Pro

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    X2, You don't want to let you Trans hunt like that. You will over heat it in no time. Just put it in 4th and leave it when towing.
     
  10. Feb 12, 2012 at 9:22 AM
    #10
    rmerchant3

    rmerchant3 [OP] Insert nonsense here

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    The to leave it in D or not is a dead beaten horse. The manual states it solely for increased engine braking. But, based on my experience I will leave it in fourth unless I'm on a flat road from now on.
     
  11. Feb 12, 2012 at 9:26 AM
    #11
    Tacoma Mike

    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    :deadhorse: You think so ????? LOL
     
  12. Feb 12, 2012 at 9:28 AM
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    DEEVON911

    DEEVON911 Semi-Pro

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    I don't think here. I think pretty much everyone on here agrees, that it should be left in 4th. I had a trans go on me when it was hunting once.I was not even towing anything. Was not a Tacoma, it was a POS quite frankly. But it scared the shit out of me, becuase it blew trans fluid all over the exhaust, and fill the truck with smoke. Thought I was driving down the road on fire! :eek:
     
  13. Feb 13, 2012 at 6:03 PM
    #13
    csu grad

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    5th gear or overdrive is not meant for towing. Take a look at the trucks that pull heavy loads like Ford, Chevy, and Dodge. Looking at all of them with diesel engines, you will see that until recently, Ford had an overdrive button on the shifter. This was meant to be turned off when towing. They now have changed it to be like Chevy. The tow/haul button holds the truck in lower gears until the rpm's get higher regardless of throttle position. 5th gear in the Tacoma should only be used when not towing and not climbing steep grades or hauling significant loads. Also, cruise control should never be used when towing. Hope this helps a little.
     
  14. Oct 26, 2012 at 11:53 AM
    #14
    hanahou7

    hanahou7 Well-Known Member

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    Hello,

    I am new to the forum and just bought a 2012 Tacoma Double Cab Long Bed back in June. Duck season started here in CA, and I went to hook up my boat to the truck, but noticed the port where I usually plug my trailer wires into was totally different then on my older truck.

    Is there some sort of adapter I need to purchase? Thanks for the help!
     
  15. Oct 26, 2012 at 12:00 PM
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    TenBeers

    TenBeers Well-Known Member

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    I don't think it matters whether you are towing or not -- the cruise control drives me nuts and I always turn it off. Even crossing Kansas it was downshifting near the tops of hills. I rarely use it.
     
  16. Oct 26, 2012 at 2:21 PM
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    tractng

    tractng Well-Known Member

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    Leave in 4th when towing. I tow 4500 lbs trailer all the time.

    1500lbs is a piece of cake :)
     
  17. Oct 27, 2012 at 5:00 PM
    #17
    Chitoson

    Chitoson Well-Known Member

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    You probably need the 7 pin to 4 pin adapter. Toyota sells them but you can also get them at many auto stores.


     
  18. Oct 28, 2012 at 7:03 AM
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    gologit

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    Nothing major or fancy. Just stuff to make it work better for me. Running boards, seat covers, BakFlip
    Any auto parts store or RV dealer has the adapter you need. Mine was 10 bucks if I remember right.
     
  19. Oct 29, 2012 at 10:20 AM
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    hanahou7

    hanahou7 Well-Known Member

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    Thanks for the replies. I did find out it was the 4 pin adapter I needed, and went ahead and got one. Thanks again!
     

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