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Transmission cooler missing…I know I know

Discussion in '2.5 Gen Tundras (2014-2021)' started by ColoradoCub, Sep 27, 2021.

  1. Oct 21, 2021 at 8:13 AM
    #721
    Oey12

    Oey12 New Member

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    I don’t believe he is qualified either based off what I read about him however I agreed with @Cpl_Punishment. The chief engineer is highly responsible for any shortcomings however I don’t believe any vehicle is produced SOLELY off one persons vision. And if it was Toyota’s reputation is going to change rather quickly. One sided anything is no good.
     
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  2. Oct 21, 2021 at 8:13 AM
    #722
    TundraTed

    TundraTed New Member

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    In order: Orvis dog cover for rear bench seat, OE gun safe, Husky liners front/rear, Tyger tonneau tri fold, Rough Country seat covers
    Then he needs to remove the dolts making dumb decisions or call Japan for help. He is ultimately responsible for what drives off of the assembly line...
     
  3. Oct 21, 2021 at 8:19 AM
    #723
    Oey12

    Oey12 New Member

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    It’s hard for a dolt to recognize a dolt when they are looking in the mirror…

    And in all honesty do we really know who is calling the shots here? Maybe Japan is saying F it and listening the the squeakiest wheels in the market?
     
  4. Oct 21, 2021 at 8:20 AM
    #724
    hagrid

    hagrid The most diverse of Diversity Hires!

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    paynuss stretchers
    @MikeSweers.

    Step in here and provide testimony.
     
  5. Oct 21, 2021 at 8:24 AM
    #725
    Summitroad

    Summitroad New Member

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    I rather he stepped down than step in
     
  6. Oct 21, 2021 at 9:15 AM
    #726
    Terndrerrr

    Terndrerrr guzzling dealer repellent

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    I think removing the cooler was the wrong move, but I harbor no ill will toward Sweers. There are so many factors that go into decisions like this. Engineering is the not where the final decision rests; they simply submit their findings and make recommendations. We may never know if it was bean counters trying to squeeze a few more drops of profit from the last run of an extremely long generation; sure seems that’s what they did with several features with the 2014 refresh. If profit margin is the real reason, I would still expect Sweers to say the exact same thing he did. He’s not going to publicly bite the hand that feeds him.

    I enjoyed the interview/walk around he did with TFL for the 3rd gen.
     
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  7. Oct 21, 2021 at 10:19 AM
    #727
    Summitroad

    Summitroad New Member

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    I do not hate him either but, IMHO, based on my experience since the late 60's with my Dad's Toyota trucks and Land Cruisers. I can say without a doubt, that his leadership has been disastrous for Tacomas 3rd gen and Tundras 2.5 gen. Neither truck is better than their prior gen. Sold my 2016 Tacoma with 70K miles, never before sold any of my trucks with so little mileage. The drivability was terrible, no low end torque, gearing to high, not to mention that the QRD was questionable, it did break a plastic cooling pipe on the back of the engine that originally in the Lexus from where that V6 came from, the pipe was made of aluminum. Another brilliant improvement
     
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  8. Oct 21, 2021 at 1:15 PM
    #728
    Mad Max

    Mad Max New Member

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    Lexus LX 570 have the transmission coolers. Nice big one also, isnt the same drive as the Tundra?
     
  9. Oct 21, 2021 at 1:17 PM
    #729
    Sciosh98

    Sciosh98 New Member

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    Yes, but big difference is the full time AWD, if I'm not mistaken.

    *EDIT* I was mistaken, completely forgot about the 8 speed
     
    Last edited: Oct 21, 2021
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  10. Oct 21, 2021 at 1:21 PM
    #730
    JDR76

    JDR76 New Member

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    LX570 uses the same engine but a different transmission (8 speed).
     
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  11. Oct 21, 2021 at 2:09 PM
    #731
    Acedude

    Acedude New Member

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    With this Sequoia towing from Denver to Durango and back 35 weeks per year the chasenicholas kit was a no brainer. That's multiple 10kft passes each trip. $1000 is chump change in the grand scheme.
     
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  12. Oct 21, 2021 at 2:21 PM
    #732
    Acedude

    Acedude New Member

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    RCI aluminum front skid, Timbren rear bumpstops, Carhartt seat covers and cargo area cover, Weathertech floorliners, Hewitt SAIP bypass, genuinecoolingsystems trans cooler, Lexus front diff fill/drain plugs
    And 'AWD' in the transfer case. It's called full-time 4WD by Toyota. Torsen center diff, same as the 2021 Sequoia with the 6-spd auto trans. Great system.
     
  13. Oct 21, 2021 at 5:35 PM
    #733
    Retired...finally

    Retired...finally Utilizing that doctorate of procrastinatory arts

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    So, 25 pages so far. I haven't learned much useful information so far. Anyone up for a motor oil thread?:crapstorm:
     
  14. Oct 21, 2021 at 5:48 PM
    #734
    Summitroad

    Summitroad New Member

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    Humm... nope, no issue there. Just follow Toyota's recommendation
     
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  15. Oct 21, 2021 at 5:52 PM
    #735
    hagrid

    hagrid The most diverse of Diversity Hires!

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    paynuss stretchers
    Yes, plz.
     
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  16. Oct 21, 2021 at 6:02 PM
    #736
    Oey12

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    Toyota only recommends 0w20 for fuel economy purposes therefore their recommendation is incorrect and should not be followed… 15w40 works best :)
     
  17. Oct 21, 2021 at 6:40 PM
    #737
    Cpl_Punishment

    Cpl_Punishment Young men never die.

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    It's probably a cost cutting measure.
     
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  18. Oct 21, 2021 at 6:50 PM
    #738
    ColoradoCub

    ColoradoCub [OP] New Member

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    Read this interesting response today on the Tundra Crew Facebook page. 290 deg, that’s gotta be great for the tranny!

    BBE6FD88-8EAF-4D64-893A-195DB2AA2883.jpg
     
  19. Oct 21, 2021 at 7:07 PM
    #739
    timsp8

    timsp8 Former Tundra owner for 13 years

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    900lb atv and approximately 700lb tongue weight plus him and probably some gear in the mountains. I’m for the cooler, but this does not help the argument.
     
  20. Oct 21, 2021 at 7:22 PM
    #740
    ColoradoCub

    ColoradoCub [OP] New Member

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    He’s well within the tow rating for that truck, I’d venture to say his tow rating is close to 10,000 lbs in a long bed DC, he has room to spare. Needless he’s towing the same load with a cooler and no longer has overheating issues.
     
  21. Oct 21, 2021 at 7:41 PM
    #741
    Terndrerrr

    Terndrerrr guzzling dealer repellent

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    Yeah, he’s under GCWR, but he’s well over payload, unless the DC long beds are rated for over 2k lbs. I don’t actually know what DC long beds are rated for.

    Still a 50ºF drop is pretty great. The cooler is actually helping temps to not run away unchecked, unlike the puck alone…
     
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  22. Oct 21, 2021 at 7:50 PM
    #742
    timsp8

    timsp8 Former Tundra owner for 13 years

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    For me with the factory cooler, I’ve never seen 240. So yeah he dropped 50, but is still higher than mine has ever been. If I saw 240 I’d think I was overheating.

    There’s more to it than just tow rating. I’d guess he is way over payload. Is he completely stock or does he have any other mods? Bigger tires? Aftermarket bumper and winch? Was the 290 just for a short time up a steep grade or was it sustained? How steep were these mountains he was in?

    Im not asking for answers. Just saying there’s a lot more info needed before saying he just needs a cooler. Can’t just slap a cooler on and go over payload and tow more than 75% of max up steep mountains and expect everything to be good.
     
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  23. Oct 21, 2021 at 7:53 PM
    #743
    ColoradoCub

    ColoradoCub [OP] New Member

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    Bottom line is if he was driving a 2007-2018 he would never have seen those temps, evident by the reduction in temperatures after he added a cooler. Really makes it clear that Toyota screwed up by deleting the cooler form the 19-21’s.
     
  24. Oct 21, 2021 at 7:56 PM
    #744
    ColoradoCub

    ColoradoCub [OP] New Member

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    He’s pulling loads in the Rockies, there’s a huge difference towing in the mountains and towing on flat land. Just like I feel that TFL didn’t really expose Toyota on this issue when they did the overheat test video. They parked at the bottom of the pass, truck was cold, headed up the pass and test was over. If they had headed west out of Denver towing and then checked temps at the Eisenhower tunnel that tranny would have been a hell of a lot hotter. A 8 minute run isn’t really a true test!

    As far as big tires, lift kit, payload etc which we don’t know, it really makes no difference. He installed a component that has been on every Tundra with a tow package prior to the year his truck was made and no longer has overheating issue, end of discussion.
     
  25. Oct 21, 2021 at 8:13 PM
    #745
    Mad Max

    Mad Max New Member

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    I know this is useless but I will post anyway. My 2001 Lexus gs300 with 170K miles had a solenoid fail in transmission. In order to replace I had to drop pan. The fluid at 170K appeared new. there wasn't any wear material in pan. I have owned since 20K miles. Every 30-50K miles I would drain 2 quarts and refill. One issue I always had was checking the fluid with the dipstick when hot. I live in Houston and would drive 50 miles in 98F heat and I could still hold my hand on the dipstick where trans fluid was, so it was never "hot". I don't think it has a thermostat, I don't think its ever been over 160f lol. Shifts flawlessly. Oh by the way I got a used solenoid out of a Lexus in a junk yard. That car was abused, when I dropped it's pan it looked brand spanking new. My Tundra before cooler would run 220F 10 miles from House in summer. Now it runs 195F but thinking about pinning thermostat open as my Lexus never had ill affects from cold transmission fluid.
     
  26. Oct 21, 2021 at 8:40 PM
    #746
    TILLY

    TILLY Gently Used Member

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    Sorry, but a post on Facebook with lots of missing information doesn't end this discussion, as you seem to suggest/hope it might.
     
  27. Oct 21, 2021 at 9:01 PM
    #747
    ColoradoCub

    ColoradoCub [OP] New Member

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    Actually it does, but you keep doing you and continue to defend and argue.
     
  28. Oct 21, 2021 at 9:15 PM
    #748
    TILLY

    TILLY Gently Used Member

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    No it doesn't, and yes I will, thanks.
     
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  29. Oct 21, 2021 at 9:23 PM
    #749
    Terndrerrr

    Terndrerrr guzzling dealer repellent

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    Here are some numbers for you: this is from the ‘21 manual, but I’m sure they’re the same for 2019s:
    DC long bed 4wd gross weight rating: 7200 lb
    DC long bed 4wd payload (w/ tow package and 38gal tank): 1290 lb

    So, first thing he does is park a 900 lb ATV in his sweet 8ft long bed. His payload is now 390 lb. Then, he and his wife (and kids? dog? luggage?) get into the truck. Say it’s just the two of them. There goes another 300 lb (we’re in America here; this is a conservative estimate). Available payload is now 90 lb.

    So, with only 90 lb of available payload, he hooks a 7300 lb trailer up to the rear bumper and then decides to drive through the mountains with it. :eek::facepalm:

    Depending on how that trailer is loaded, his tongue weight could be anywhere from 730lb to over 1200lb. That means he could be anywhere between 640 and 1110 lb over his GVWR.

    I agree with him when he said “No one can [dispute] that lower transmission temps equate to longer service life.” And yes, the cooler dropped his temps ~50ºF. It actually works to keep those temps from running away on him, which the warmer/cooler puck was unable to do on its own. This is why I’m pro-cooler.

    HOWEVER, cooler or not, using your Tundra in this way is NOT the best way to get long service life out of it. I am occasionally over payload. I run a cooler. I also monitor lock-up status, and when I’m loaded down, I make sure that I stay in lock-up as much as possible. I would still NEVER do what he is doing with his truck. He makes it sound like adding the cooler justifies his pulling that load through the mountains. He is wrong, and he should have bought a different truck.
     
  30. Oct 22, 2021 at 3:17 AM
    #750
    Bammer

    Bammer I'm disinclined to acquiesce your request.

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    I can't stop clicking on this thread !:bananadead:
     
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