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New Tacoma Engine Issues

Discussion in '3rd Gen. Tacomas (2016+)' started by mformby1, Nov 1, 2017.

  1. Nov 1, 2017 at 5:40 AM
    #1
    mformby1

    mformby1 [OP] Member

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    My Tacoma has about 4,000 miles on it and it just doesn’t seem right. I live in Louisiana so the area is extremely flat. The biggest hill is artificial, an overpass on an interstate. To go over any overpass, my truck feels like it’s struggling. If I have cruise on at 70 mph 1800 RPMs, to get over the small overpass my truck shifts down twice. The first is two 2400 RPMs and then the second downshift is 3800 RPMs and it floors it to get there. I just feel like a brand new truck shouldn’t have this problem. Thoughts? Don’t know much about motors so try to speak English lol
     
  2. Nov 1, 2017 at 5:43 AM
    #2
    tomwil

    tomwil Well-Known Member

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    Maybe the ECU update would help?

    https://www.tacomaworld.com/threads/ecu-update-at-dealer.517647
     
  3. Nov 1, 2017 at 6:07 AM
    #3
    BlakeM

    BlakeM Well-Known Member

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    Supercharger.
     
  4. Nov 1, 2017 at 6:16 AM
    #4
    paxton306

    paxton306 Well-Known Member

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    Have you tried driving with the ECT button on to see if this helps?
     
    H3ATH3N2016 likes this.
  5. Nov 1, 2017 at 6:20 AM
    #5
    SouthtownTaco

    SouthtownTaco Well-Known Member

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    Your issue is common! All of us experience this. This is a small affordable truck with decent gas milage, and perhaps Toyota hadn't optimized their tuning for this exact situation. Most Americans want a full size truck with a huge engine that wouldn't down shift in this situation. An ECU update (Either Toyota's or OVTune's) is our best bet for improving this issue. I too am looking into this...
     
  6. Nov 1, 2017 at 6:23 AM
    #6
    jowybyo

    jowybyo Mobtown Offroad

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    I think our definition of affordable is different.
     
  7. Nov 1, 2017 at 6:27 AM
    #7
    CusterFan

    CusterFan Stewart-Haas Racing

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    No doubt!!
     
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  8. Nov 1, 2017 at 6:29 AM
    #8
    127.0.0.1

    127.0.0.1 AKA ::1

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    yup. I would love if toyota went back and put out a basic pickup for $20,000 ...like the 1982. that
    was a ideal general purpose work/play vehicle
     
    Riding Dirty and Dirty Harry like this.
  9. Nov 1, 2017 at 7:09 AM
    #9
    Garyji

    Garyji Well-Known Member

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    OP, Read through the Forum. When you do, you'll feel normal!!

    G.
     
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  10. Nov 1, 2017 at 7:14 AM
    #10
    hiPSI

    hiPSI Laminar Flow

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    What did you drive before getting a Tacoma?
     
  11. Nov 1, 2017 at 7:25 AM
    #11
    68injunhed

    68injunhed Well-Known Member

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    A couple things
    This happens when you put an engine meant for a 3500lb car in a 4500lb truck.

    For all you younger guys...S mode, limit at 4, which is 1:1, run up to 65mph.....welcome to ALL trucks prior to the OD auto trans.

    I don’t worry about it anymore, the main reason it bugs people IMO is because you can hear the engine. My wifes Camry does similar things, but it’s quiet about it.
     
    Toyko Joe and Dirty Harry like this.
  12. Nov 1, 2017 at 7:28 AM
    #12
    Dirty Harry

    Dirty Harry Well-Known Member

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    OP, you're not alone. The general consensus is that the truck makes plenty of power, its just in the wrong place. The auto transmission on the V6 just liked to hunt to attempt to make better fuel economy. Its annoying, but like a few other people have stated, there is a TSB out to attempt to fix the transmission behavior.
     
  13. Nov 1, 2017 at 7:44 AM
    #13
    Otaku1

    Otaku1 Active Member

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    Are you saying in '82 a Toyota was $20k? Damn! And I was wishing for the days like '92 when I bought an XLT F150 Extra cab for $19,000 off the lot.
     
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  14. Nov 1, 2017 at 7:45 AM
    #14
    jholc21

    jholc21 Well-Known Member

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    The issue is twofold. The 3.5 makes it's torque higher in the RPM range than the 4.0 liter, add in a new transmission that is geared normal 1-4 and then makes a huge jump to 5th (an overdrive gear) and then another jump to 6th (an even larger over drive gear) and you have a truck that needs to downshift to 4th more than is should. The problem when you are cruising along in 6th at a low RPM and it encounters a hill, it will downshift to 5th, (not much help as it's only a few hundred RPM higher) and then the has to go to 4th to get back into the power band to maintain hwy speed on this small hill. CC is telling the truck not to drop speed at all so it goes to 4th which is significantly smaller than 5th thus the large increase in RPM and noise. I think Toyota blew it with the 5th gear ratio in this truck. Had it simply split the difference between 4-6th it would have been much more usable. There are options out there. Make sure you have the latest TSB done, (that helped for me). You can try Shift Sense Pro as it applies better logic to the trans and helps with the erractic shifting. Then there is OV Tune.
     
  15. Nov 1, 2017 at 7:49 AM
    #15
    Dirty Harry

    Dirty Harry Well-Known Member

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    Pretty sure that is the best explanation I've seen from a transmission technical standpoint.
     
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  16. Nov 1, 2017 at 9:24 AM
    #16
    weefek

    weefek Well-Known Member

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    Toyota didn't defeat gravity for the new gen3???? What a fucking TURD
     
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  17. Nov 1, 2017 at 9:30 AM
    #17
    RangerComa

    RangerComa 58008

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    list is growing fast
    Op, two things should happen.

    1. You'll learn the drivetrain habits and your habits will change to anticipate what the truck will do.

    2. The fly by wire will learn as well, and it will begin to anticipate your driving habits and the truck with shift smoother, hold gears longer and completely change the feeling of the truck.

    Mine transitioned to a much smoother drive around 10,000 mile mark.

    Edit: I came from a life of manual transmissions, so learning to drive an automatic was painful.
     
    Last edited: Nov 1, 2017
  18. Nov 1, 2017 at 9:42 AM
    #18
    Comb

    Comb Known Member

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    LOL, you could buy a vette for $20k in 1982.
     
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  19. Nov 1, 2017 at 9:57 AM
    #19
    CusterFan

    CusterFan Stewart-Haas Racing

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    My 2.7 4 popper does the same thing. I wish it had a CVT transmission in it.
     
  20. Nov 1, 2017 at 10:03 AM
    #20
    stump jumper

    stump jumper Well-Known Member

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