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2019+ Transmission Cooler Kit

Discussion in '3rd Gen Tundras (2014+)' started by chasenicholas93, Jan 19, 2020.

  1. Jul 23, 2020 at 6:10 AM
    #781
    Ruggybuggy

    Ruggybuggy New Member

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    Nothing really capricious about the decision. Large successful companies always make decision based on money.
     
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  2. Jul 23, 2020 at 6:26 AM
    #782
    blanchard7684

    blanchard7684 New Member

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    I'm thinking the "warmer" also acts as a cooler. Other transmission cooler systems have transmission fluid routed to radiator. The warmer/cooler is likely a similar surface area unit but disconnected from the transmission. Kind of the same thing.
     
  3. Jul 23, 2020 at 7:07 AM
    #783
    Ruggybuggy

    Ruggybuggy New Member

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    Your right in that the warmer/cooler acts as a cooler when the transmission temperature is higher than coolant temperature and can maintain proper trans temps in normal driving. When towing the warmer/cooler isn't able to maintain a same temperature. Myself and others have experienced 250F which isn't a safe operating temperature.
     
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  4. Jul 23, 2020 at 8:27 AM
    #784
    blanchard7684

    blanchard7684 New Member

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    Interesting.

    The Mike Sweers comment indicates there might be some sort of hardware upgrade to accommodate this. It'd be interesting to know if there were any part number changes for 2019+ transmissions.
     
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  5. Jul 23, 2020 at 8:31 AM
    #785
    jordoncloutier

    jordoncloutier New Member

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    90% stock , Daily Driver / Tow Vehicle , Retrofitted Trans Cooler , 10 Ply tires

    Im pretty sure someone here has compared part numbers of the warmer and there is no difference ,, IMO mike sweers is just another corporate puppet . he lost all credibility with this trans cooler fiasco .
     
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  6. Jul 23, 2020 at 8:33 AM
    #786
    blanchard7684

    blanchard7684 New Member

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    I was thinking in terms of the transmission parts...
     
  7. Jul 23, 2020 at 8:35 AM
    #787
    Ruggybuggy

    Ruggybuggy New Member

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    I've seen both the older Tundra warmers and the supposedly new warmer/cooler and they look exactly the same. I doubt it highly there is some new magic that was applied internally to make it cool better.
     
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  8. Jul 23, 2020 at 8:40 AM
    #788
    Ruggybuggy

    Ruggybuggy New Member

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    The problem is the AT oil which degrades quickly in higher heat. Even the full synthetic, which WS isn't, will degrade when subjected to 250F. Degraded oil will shorten the AT's longevity.

    A good read.
    http://transmissionrepairguy.com/transmission-overheating/
     
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  9. Jul 23, 2020 at 8:43 AM
    #789
    jordoncloutier

    jordoncloutier New Member

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    I really don't think there has been an Transmission hardware upgrades since the release in 2007 .
     
  10. Jul 23, 2020 at 9:54 AM
    #790
    timsp8

    timsp8 Member

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    The thermostat is what directs the fluid to the atf cooler. Without it, the atf cooler would be sitting there empty in front of your radiator. Cant have one without the other.
     
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  11. Jul 23, 2020 at 12:09 PM
    #791
    bellwilliam

    bellwilliam New Member

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    it really doesn't matter if there was a hardware change or not. what matters is result.
    I can tell you from driving around town, unloaded, not towing. I am already at 230F for transmission temp.
    I have also towed 7k LB around town, and getting 250F.
    I've not yet towed over mountain passes here in southern California in traffic. That's when transmission temp shoots up.
     
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  12. Jul 23, 2020 at 12:51 PM
    #792
    jordoncloutier

    jordoncloutier New Member

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    Thats right , the proof is in the pudding , all of us here are seeing real world testing . This is showing us that toyotas word on the subject is just B.S . I can only speak for myself but its Definitely a disappointment and a loss of trust towards toyota engineers
     
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  13. Jul 23, 2020 at 12:58 PM
    #793
    Ruggybuggy

    Ruggybuggy New Member

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    It's not so much an engineers fault and more of an issue with the accounting end of Toyota.
     
  14. Jul 23, 2020 at 4:17 PM
    #794
    drowhawk

    drowhawk New Member

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    ^Ditto on everything Ruggybuggy said. Engineers are constantly fighting with corporate bigwigs to maintain quality. If it wasn't for financial pressure and money in general, we would have cars that did not break and were super easy to work on.

    That being said, I agree that somewhere along the line a marketing guy demanded that the truck get TSS and maintain $X for the vehicle. Transmission cooler got the boot. Even base model Chevy 1500s come with an auxiliary cooler in series from the radiator. Why Toyota went this way is beyond me. Give me the halogen bulbs and no brake controller but don't take the cooler out.
     
  15. Jul 23, 2020 at 4:22 PM
    #795
    drowhawk

    drowhawk New Member

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    I would be interested to know if someone towed heavy loads with their MY2019+ to 30k miles and then got their fluid analyzed. No modifications from stock just beat the crap out of it, ignore the trans temps and compare it with those who have a aux. cooler.
     
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  16. Jul 23, 2020 at 4:44 PM
    #796
    hagrid

    hagrid 6Al/4V

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    Good Lord, I hope not. Need to save money for fuel.
    I wonder what other systems have been compromised?
     
  17. Jul 23, 2020 at 5:05 PM
    #797
    Catmann1972

    Catmann1972 New Member

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    I have read most of this thread and I am confused. Maybe someone can shed some light on this situation. I just purchased my 2020 Tundra TRD Sport - Picking it up on Saturday. I do tow a TT that is around 6500#. I just read my vehicle data spec sheet and it lists that my truck has and I quote "TOW PACKAGE - TOW RECIEVER HITCH, 4:30 AXLE, ENGINE/TRANS FLUID COOLERS, TOW HAUL MODE. So what everyone is saying is that we don't have a transmission fluid cooler. I am confused

    Also what is this sequential shifting that I am reading about in this post? I have never heard of this before?
     
  18. Jul 23, 2020 at 5:23 PM
    #798
    drowhawk

    drowhawk New Member

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    The sequential shifting procedure refers to Toyota's way of checking the fluid level that's all. Folks that are adding a cooler need to check the fluid level after installation.

    As for your tow package, all you get is a small Hockey puck size heat exchanger on the side of the transmission (that has always been there on previous models) that runs coolant through one side and ATF through the other. Previous years had an auxiliary cooler for the transmission in addition to the heat exchanger. If you tow that much weight, you should consider adding a cooler kit. I bought a '19 last week after selling my '10 and realized it was missing the cooler. I've already installed a cooler setup as my camper is 8500 lbs.
     
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  19. Jul 23, 2020 at 5:37 PM
    #799
    Catmann1972

    Catmann1972 New Member

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    So if I don't add a trans cooler and I tow my 6500# TT, often, usually 5 times a year and the transmission decides to shit the bed after a few years because of the overheating of the trans fluid, and because the Toyota Engineers are incompetent. I'm hoping I would get a new transmission from toyota through warranty. I am starting to wonder if I should have bought a Ram.
     
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  20. Jul 23, 2020 at 6:02 PM
    #800
    jordoncloutier

    jordoncloutier New Member

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    If you bought a ram you'd have plenty of other problems to worry about lol ... If your mechanically inclined at all , installing a cooler will be pretty straight forward for you . It's not rocket science and not overly expensive either.
     
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  21. Jul 23, 2020 at 7:13 PM
    #801
    Catmann1972

    Catmann1972 New Member

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    OH, I totally agree about the Ram or any of the other manufacturers. Toyota is still the way to go for sure. It's just pretty crappy what Toyota did to the 19+ Tundra's Trans cooler. I won't have any issues installing the trans kit, i installed a similar one on my Tacoma. I am very mechanically inclined. I am a Caterpillar mechanic so this will be a walk through the park. Just suck's, we pay top dollar for these trucks and this is what we get. We still have to put money into the truck and our time. just sucks
     
  22. Jul 23, 2020 at 7:16 PM
    #802
    jordoncloutier

    jordoncloutier New Member

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    I'm right there with you my friend ! I was super disappointed when I learned about the lack of cooler as well . Being an automotive tech myself and having owned all the domestic brands over the past 10 yrs , I can firmly say I'm never going back to domestic I work on everyone else's junk all day . The last thing I want to do is come home and work on my personal vehicle lol
     
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  23. Jul 23, 2020 at 7:32 PM
    #803
    Catmann1972

    Catmann1972 New Member

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    Amen, well said. i feel the same way. :thumbsup:
     
  24. Jul 23, 2020 at 7:43 PM
    #804
    Ruggybuggy

    Ruggybuggy New Member

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    No one really knows what the result of running the transmission at higher temps frequently. The Tundra has a very durable transmission so failures from heavy use probably won't happen well after the warranty is up. Most owners will trade sell their Tundras before the transmission has issues.

    As far as the Ram is concerned, the Hemi has a major flaw in the oiling system which has resulted in cam failures in as little as 20K.
     
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  25. Jul 24, 2020 at 1:54 AM
    #805
    Fourknights

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    I still believe the loss of the cooler, had to do with Freon change. Toyota was more concerned with Freon than transmission cooler.
     
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  26. Jul 24, 2020 at 6:52 AM
    #806
    drowhawk

    drowhawk New Member

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    Hrm... I've worked on hundreds of 5.7L Hemis. Never even had the valve cover off on one. They seem to be very durable. Must've just been an isolated problem? I do know that you are far better off having a 6 speed without the trans cooler than one of those garbage 8 or 10 speeds with the cooler.

    I will say Dodge (especially late-models) have horrible electrical problems. We almost expect a PCM replacement at some point before 150K. I've had a few hemis where the ignition coils took a shit and wiped out the drivers in the PCM. Grand cherokees we just price out the PCM with the alternator because we know it'll need both if the alternator dumps.

    I'm disappointed myself about the lack of cooler but the Tundra is still over built and is based on a proven design. I'll take Tundra over any other half ton.
     
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  27. Jul 24, 2020 at 7:04 AM
    #807
    Ruggybuggy

    Ruggybuggy New Member

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    A very common problem.

    https://youtu.be/inPUz3pCHa0
     
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  28. Jul 24, 2020 at 7:33 AM
    #808
    YotoMan

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    I can attest to the “MDS oiling issues”. 120k miles on my ex wife’s hemi and it completely destroyed the roller lifter on cylinder #3 and cam lobe causing a nasty engine miss-fire. Replaced all lifters & cam.
     
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  29. Jul 24, 2020 at 7:59 AM
    #809
    Ruggybuggy

    Ruggybuggy New Member

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    The scary thing is that it's a design flaw in the block so expect it to happen again.
     
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  30. Jul 24, 2020 at 8:00 AM
    #810
    YotoMan

    YotoMan New Member

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    Well she an “ex-wife” now.. best of luck to her and her Ram! Lol
     
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