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2019 5.7 trans cooler location

Discussion in '3rd Gen Tundras (2014+)' started by jcop1, Oct 18, 2018.

  1. Oct 8, 2019 at 5:35 AM
    #151
    msbaugh440

    msbaugh440 2019 limited, TRD package, cement

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    I’m with you there. I don’t want to void my warranty but am worried about damage. I’ll have them change my fluid every 30k but it’s not just the fluid I’m worried about, it’s the seals and O-rings that degrade over time from having that high of temperatures.
     
  2. Oct 8, 2019 at 6:03 AM
    #152
    sundance

    sundance New Member

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    I don't see anything you've said that makes you an expert and everyone else mistaken.

    It amazing that you believe that 5 degrees difference in temps doesn't make any difference at all in heat exchange.......

    I mean seriously, people have been running around saying there is not cooling at all. It is so ridiculous there is no reason to believe anything else you're saying. I mean take the damn cooler off and plug the holes and see what happens.

    200-215f isn't too hot. Believe whatever you want to believe but you're living in a fantasy world. It doesn't matter if its 50 degrees outside. The system is designed to run at those temps regardless of external conditions.

    I do believe the cooler could stand to be bigger. I also listed the parts needed to add the external AIR cooler. Go for it.

    Either way, enjoy talking to the like minded. I'm done with this conversation. I'm enjoying my 14 and have no plans to upgrade. I was just trying to help.

    I don't believe you'd accept a Toyota engineers response even if he gave one. He is obviously going to stick to what Toyota has done. You already have your answer in that regard. Bye.
     
    Last edited: Oct 8, 2019
  3. Oct 8, 2019 at 6:06 AM
    #153
    sundance

    sundance New Member

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    Better trade it now. Its never worth more than what its worth right now.
     
  4. Oct 8, 2019 at 7:34 AM
    #154
    19crewmaxTRD

    19crewmaxTRD New Member

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    I believe they removed the cooler because they had to change the condenser due to the change in freon. Instead of investing money in an old platform to reengineer a new transmission cooling system, they deleted the system completely, put the truck up against the ja2807 towing standards with the system removed and it passed so they left it off.

    While I don't like it, especially since I do tow max weight up a few grades, I understand it. Also while towing max weight with my 14 the only time I saw the pan temp get above 215 is when I was towing up a grade. On my new 19 it lives at 215 and I haven't had a chance to tow anything close to max weight yet. I guess time will tell.

    The one thing I will say though is I've been a loyal Toyota guy for a long time because of the reliability, I hope my new truck doesnt change that for me.
     
    RPKEAN likes this.
  5. Oct 8, 2019 at 10:26 AM
    #155
    msbaugh440

    msbaugh440 2019 limited, TRD package, cement

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    Actually I would be perfectly happy with an engineering explanation from Toyota. I’m not saying that 200-215 is unacceptable either, I’m just worried about towing temperatures. Especially with statements of other people on the 19s already getting high transmission temperature lights when towing up grades.

    And by the way I’m actually quite qualified for this discussion believe it or not, but say what you will. I work in a refinery where I design and run HTRI simulations on larger heat exchangers on a daily basis. All I want is a better understanding of the system and to understand what affects my truck would have if I installed the thermostat present on previous model tundras. It seems the unit was removed for reasons mainly due to costs and Freon changes. I think it’s obvious that the old system was more robust and in the end all I want is the ability to to have a better suited system to ensure long term reliability. You seem to be getting pretty worked up over this conversation. Remember this is a board for improving and modifying these trucks, so don’t get upset when we are concerned about changes that caused an increase in transmission temperatures and want to seek a solution that will address our concerns, or at least speculate on if our concerns are indeed valid ones. You seem to shoot down the whole thread and our comments without any supporting facts to ease our minds
     
  6. Oct 8, 2019 at 10:41 AM
    #156
    sundance

    sundance New Member

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    I don't generally like indirect references. If you want to reference what I said, then by all means, reference me. I have said plenty and provided facts. If you want to reference something specific, do so. I have done the same.

    I stand by what I said. I very seriously doubt that you accept a Toyota engineers explanation. There is only a few things he can say and you're obviously not willing to accept any of them. I mean seriously. Admit that the engineer is going to tell you there is nothing wrong and the truck can handle it. You've been told this by others and it doesn't appear that you will accept this. The proof that the engineer is going to say this is in the fact they've made the trucks this way. They have made a conscious effort to change the design that has been in place throughout the 2019 model and carried over in the 2020s.

    They're not going to say... Oops... Our bad. You really should have the old air cooler.....

    Heck, I maybe wrong but I weigh what I say carefully.

    Hey, thanks for the conversation. We agree. I'm an arse. I know I am at times. I'll let you get back to your HTRI software. Just ignore those 5 degree variances you see. They're negligible. ;)
     
  7. Oct 8, 2019 at 10:56 AM
    #157
    timsp8

    timsp8 Member

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    There’s more than engineers too though, like the number crunching CEOs, managers, marketing. Of course the engineer is going to say it’s good and you don’t need it. Lawyers wouldn’t let him say otherwise or else they’d have to recall all 19s and 20s. But it would be nice to know if it’s cost savings, new Freon, it never really needed it before, or maybe they think only 5% of owners actually tow so they’ll take their chances.
     
    pickeledpigsfeet likes this.
  8. Oct 8, 2019 at 11:40 AM
    #158
    sask3m

    sask3m New Member

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    I'm sure there are plenty of Tundra owners out there who bought past models w/o the towing package and external cooler then later bought a trailer and started towing. I wonder how they made out, perhaps one will chime in.
     
  9. Oct 8, 2019 at 11:49 AM
    #159
    Hbjeff

    Hbjeff New Member

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    I would imagine that almost all of the 5.7 trucks were sold with the tow package
     
  10. Oct 8, 2019 at 3:06 PM
    #160
    MSU Tundra

    MSU Tundra Supercharged

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    Here's a couple of photos of mine that shows radiator and "Eng/Trans Fluid Coolers"...(also the Magnuson inter-cooler). Last photo shows my actual window sticker that says that I have the "Eng/Trans Fluid Coolers". Notice plural coolers.



    nBVhwrNBqd4-GZfaDGGa0BTfkiK-9DFM3ekgRm-d_7e8f32a594517a8b62c19dec26b5dd38a6f8d23c.jpg

    1g9dRbRK8iQy7uLax61o4VLQ3KtueZSiqE-G9YGJ_9d4b600396b2291267621c947a0d9b78f9b4e9fc.jpg

    PXrXQGVUpv0d3lL1kuubitt3odbweTbGH1jMgTaQ_b337fd589ac877107e7c368857166334a5dc4e77.jpg
     
    Last edited: Oct 9, 2019
  11. Oct 8, 2019 at 6:01 PM
    #161
    TTund16

    TTund16 New Member

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    can someone please explain having to remove the cooler due to the condenser/Freon changes?

    couldn't the old cooler/condenser combo work with the new refrigerant?
    does the new refrigerant require a bigger condenser for example?

    btw,
    i had heard some complain about ac not being cold … maybe that was a factor too!
     
  12. Oct 8, 2019 at 7:32 PM
    #162
    sundance

    sundance New Member

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    Edited. Revised opinion.....

    Apparently the new stuff requires a larger condenser but only 5 to 10 percent. The new stuff is also much more expensive and requires a tougher compressor and system to avoid leaks because it can catch fire under certain circumstances. All this for slightly less impact on the environment. R134 holds heat better which can contribute to global warming..... Yeah.right.
     
    Last edited: Oct 8, 2019
    sask3m and TTund16 like this.
  13. Oct 8, 2019 at 7:40 PM
    #163
    sundance

    sundance New Member

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    Technically there are coolers. The radiator and the ATF oil cooler. I went and looked at precious years window stickers and they said the same thing.
     
  14. Oct 8, 2019 at 8:06 PM
    #164
    Vizsla

    Vizsla LT AZ Bastrd

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    FYI, there is a liquid engine oil cooler also.
     
  15. Oct 8, 2019 at 9:57 PM
    #165
    TTund16

    TTund16 New Member

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    Where is the engine oil cooler located? Want to make sure mine is there and it was not removed! lol
    I've been under the car but don't recall seeing it.
    Does it look like a small radiator?
     
  16. Oct 9, 2019 at 3:12 AM
    #166
    timsp8

    timsp8 Member

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  17. Oct 9, 2019 at 9:38 AM
    #167
    blaserdude

    blaserdude New Member

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    Toyota could "save face" by offering a cooler as a TRD option. Reasonably priced, of course.
    bc
     
  18. Oct 9, 2019 at 10:17 AM
    #168
    Rubberdown

    Rubberdown Spilling my guts here.

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    Level kit Rock Warriors with 35s Ain’t doing anything else.
    I don’t think they care about saving face in the 1% that tows heavy stuff and experiences this problem. Again product development and design is designed for the masses.
     
  19. Oct 9, 2019 at 2:47 PM
    #169
    TTund16

    TTund16 New Member

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  20. Oct 9, 2019 at 3:23 PM
    #170
    timsp8

    timsp8 Member

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    I’ve seen stick on sensors that might work on the cooler. Just have to decide what temp you want to monitor - at the oil filter, pan, or where the gauge is. I think I’d do it at the filter.
     
    TTund16 likes this.
  21. Oct 9, 2019 at 4:54 PM
    #171
    btanchors

    btanchors New Member

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    As a family who is on its fourth Tundra, here is my $0.02:

    My first Tundra was a 2006, then a 2011, then a 2017 and now a 2019. My family still owns the 2017 and 2019.

    I agree with others in this forum that they have uncovered/identified an issue that needs an explanation from Toyota. There is enough evidence presented here that raises valid questions about the transmission fluid cooling equipment on the 2019. FYI, all the Tundras I have owned came with the "Towing" package - and in the earlier models, I paid extra to get it.

    I also agree that there are several explanations presented in this thread that may be quite valid for Toyota removing the transmission fluid cooling equipment - such as the new condensing coils required by the new refrigerant change in 2019. I have no issue if these are the reasons the transmission fluid cooling equipment was removed.

    What I DO NOT like is Toyota selling the 2019 Tundra with the window sticker claiming it has a transmission oil cooler when it does not. Claiming the piece bolted onto the side of the transmission is an oil cooler when it is described in the shop manuals as a fluid warmer is BS in my opinion. I know heat transfer can work in both directions, but I don't believe that small can on the side of the transmission is nearly sufficient to cool transmission fluid properly when towing a heavy load in hot weather.

    Toyota's claim on the window sticker that the 2019s have a transmission oil cooler when it doesn't is borderline fraud to me. Does anyone feel the same way? Am I interpreting this thread correctly that the only thing that could be remotely called a fluid cooler by Toyota is the small can on the side of the transmission that is called a fluid "warmer" in the manuals?
     
    Cpl_Punishment, Dodger46 and RPKEAN like this.
  22. Oct 10, 2019 at 4:05 AM
    #172
    sundance

    sundance New Member

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    It is not described in the shop manual as a warmer. Every single reference I've seen has always said it is a cooler. Every parts manual calls it a cooler. No fraud involved.

    I tell you what I told someone else, take the damn thing off and see what happens.

    Toyota is not committing fraud or even borderline fraud. No one has reported a transmission failure. I've only seen one complaint of overheating alarm and he is running a SC with a Unichip.

    You can add the thermostat and an external air cooler of your choice. Go for it.
     
    Last edited: Oct 10, 2019
  23. Oct 10, 2019 at 5:10 AM
    #173
    Fourknights

    Fourknights Goin Coastal

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    While it could be considered a cooler,it will have little affect on cooling transmission fluid. Almost any vehicle manufactured has had a similar device normally in the radiator. Trucks and suvs with tow package will include a auxiliary cooler. The only person that seems ok with this change is not driving a 19 or 20 tundra.
     
    NCTundra1980 likes this.
  24. Oct 10, 2019 at 5:23 AM
    #174
    timsp8

    timsp8 Member

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    Here’s a couple of manuals that call it a warmer. Yes, these are old but the transmission hasn’t been changed in 13 years.

    http://tundrageeks.com/forum/attachment.php?attachmentid=490&d=1296613914

    https://tundraheadquarters.com/wp-content/uploads/2010/06/tundra-transmission-fluid-flush-tsb.pdf


    Also:

    https://entertainment.howstuffworks.com/making-of-toyota-commercial1.htm

    “Toyota engineers reacted to this ever-present threat by including an oversized transmission cooler designed to keep the Tundra shifting smoothly -- even in an unforgiving desert environment.”
     
    Last edited: Oct 10, 2019
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  25. Oct 10, 2019 at 5:26 AM
    #175
    sundance

    sundance New Member

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    You have several options......

    Add the air cooler. Take it back. Trade it. Sale it. File a class-action lawsuit.

    Tow packages mean different things to different manufacturers. I serious doubt you've investigated them enough to make such a claims as you've made. Contrary to what you've said....Air coolers have largely been part of the aftermarket community. That is why you can find a TON OF THEM for just everyone out there. Click here .... https://www.etrailer.com/s.aspx?qry=Transmission+Coolers
     
    Last edited: Oct 10, 2019
  26. Oct 10, 2019 at 5:32 AM
    #176
    sundance

    sundance New Member

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    The transmission has been updated many times in 13 years. There are multiple revision so the same model #. Each of them require special attention and are unique from revision to revision.

    Like you said, these documents are very old and have no application to current models. In fact, they no longer recommend flushing the transmission they way they do in included TSB.

    They haven't had a dedicated cooler since 2010 model year.... My 2014 has a shared air cooler that cost $1000 or more to replace and that thing sure does get hot on a hot day..........
     
  27. Oct 10, 2019 at 5:59 AM
    #177
    sundance

    sundance New Member

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    This cooler looks like a viable solution to me. You just would need to add the thermostat between the ATF cooler and the transmission and run your own lines to it. Or maybe use the old air cooler lines and convert the ends to the connectors you need for this air cooler. Then add the Toyota WS fluid necessary to bring the levels up in the transmission to the overflow test and you're good to go.

    https://www.etrailer.com/Transmission-Coolers/Derale/D52506.html
     
  28. Oct 10, 2019 at 5:59 AM
    #178
    timsp8

    timsp8 Member

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    It’s the same part # for that “cooler” since 07 that was called a warmer at one time in official Toyota documents.

    https://toyotaparts.bochtoyotasouth.com/oem-parts/toyota-trans-cooler-3349034010

    I agree with some of what you said, but don’t know why you are getting so worked up over 19 and 20 owners being upset that they don’t have a dedicated air cooler. A decision probably made by CEOs and not engineers.

    I have the ac/trans cooler in my 18. Had the same in my 10. I added another air cooler to that truck as the ac/trans combo wasn’t enough all the time when towing in heat in El Paso. Can’t imagine doing it without that. Yes, it’d be enough to possibly make me change my mind about buying a tundra. No dipstick for the trans almost made me reconsider the 18. I hated that about my 10.
     
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  29. Oct 10, 2019 at 6:13 AM
    #179
    sundance

    sundance New Member

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    I agree they've might have changed the terminology but I still see it as a cooler. Think about it. I know from experience it only takes a few minutes for the transmission to get up to 140F. That is when the transmission is allowed to shift from 5 to 6th gear. There is no way the coolant gets that temperature before the transmission does. It just doesn't happen. Friction within the transmission is the source of heat. Not the "cooler" in question.

    I'm not upset. Just debating the point. I have considered a 2020. I like the Army Green. If I were to buy a 2020, I would probably, eventually, add an air cooler if I were towing long distances at max weight ratings.

    I'm glad to know what is going and I believe Toyota should come clean.... but seriously. There's not too many people who even knew their truck had the air cooler to start with and there hasn't been a dedicated air cooler since 2010. People complained then but it don't go anywhere. Plus, there haven't been a ton of tranny failures due to the change.

    Hopefully people will learn more from this. I'm a stickler for using the proper language and building proper constructs. Ask my kids. I fuss at them all the time for saying something they can't backup from beginning to end with examples and facts. Some people call that being an arse...... I probably am....
     
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  30. Oct 10, 2019 at 6:24 AM
    #180
    Vizsla

    Vizsla LT AZ Bastrd

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    This thread.:rolleyes: The 18 and under air cooler has a thermostat in the line to let the HEATER help warm the fluid. And now no air cooler so the heater is now a COOLER also, maybe they made it bigger. You can’t figure this out playing internet mechanic/genius, Toyota part numbers change all the time, from year to year etc., doesn’t mean the part does. The combined cooler is no different than mounting the old stand alone beside the ac condenser coil, it’s just packaging.
     

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