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Adding a transmission cooler

Discussion in '3rd Gen Tundras (2014+)' started by Upgrayedd, Jan 24, 2019.

  1. Jun 5, 2020 at 7:47 PM
    #31
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    When I change to MaxLife (far in the future), I will try to change the entire transmission fill at one time.

    I remember reading here one member's experience attempting to change over to MaxLife by the drain and fill method. (No, there's no way in hell I can remember which member or what thread.) He did experience shifting problems initially, but as he continued with the drain and fill plan, all issues resolved themselves as he approached 100% change.

    For evaluating use of a different fluid, I would rather not have the result confused by mixing the two fluids. I would want to know immediately if that different fluid was performing well.
     
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  2. Jun 5, 2020 at 7:55 PM
    #32
    Joe333x

    Joe333x Member

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    Yeah I definitely agree. It's the only reason I am still considering just using WS fluid, simply because of the crazy process to check the fill level. I would like to use off the shelf fluid but also don't want to do more than a drain and fill so may have to stick with WS I'll do some more research and see if anyone else has done a drain and fill using MaxLife instead of ws. It's a shame Toyota had to eliminate the dip stick on the tranny. I guess we should just be glad we atleast still have a dip stick for the engine oil lol.
     
  3. Jun 5, 2020 at 7:56 PM
    #33
    Vizsla

    Vizsla I break stuff

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    Lol you would change your tranny fluid based on something you read on the internet. Lol. I can tell you without a doubt your advice to switch transmission fluid, while you admit you haven’t is complete horse shit. Lol.
     
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  4. Jun 5, 2020 at 8:11 PM
    #34
    Vizsla

    Vizsla I break stuff

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    Lol nope. Every 2.5 gen 5.7 had tow package dude. Every 2017 5.7 had tow package lol.
     
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  5. Jun 5, 2020 at 8:20 PM
    #35
    Vizsla

    Vizsla I break stuff

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    Tow package became standard equipment in 2014 for 5.7 lol. There are no 4.10 5.7 produced after 2013.
     
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  6. Jun 5, 2020 at 8:24 PM
    #36
    hagrid

    hagrid Ich habe sie gespritzt

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    Good Lord, I hope not. Need to save money for fuel.
    I'm switching to strawberry.
     
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  7. Jun 5, 2020 at 8:26 PM
    #37
    Wallygator

    Wallygator New Member

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    An the current "tow package" has no transmission cooler what so ever.
     
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  8. Jun 5, 2020 at 8:30 PM
    #38
    Joe333x

    Joe333x Member

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    Welllll technically speaking it does. It's just very small. From my experience, driving while not towing on the highway, if you stay at 65 the small water cooled cooler can keep the temps at 200 or under. Traveling 80 though the temps stay around 220. But obviously would have been nice to have a cooler upfront.
     
  9. Jun 5, 2020 at 8:38 PM
    #39
    Vizsla

    Vizsla I break stuff

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    FU dude. Your long winded mostly wrong drivel might suit a few, but not me. How’s the fuel pump work? Not like you assumed huh? Your advice here is shit.
     
  10. Jun 5, 2020 at 8:39 PM
    #40
    Wallygator

    Wallygator New Member

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    No the 2020 does not even have the small water cooled cooler.
     
  11. Jun 5, 2020 at 8:46 PM
    #41
    Joe333x

    Joe333x Member

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    From what I understood, on my 19, the coolant lines run down to a small cooler same as the oil cooler are you saying that changed on the 20? My trans oil temps stay almost the same as the oil temps so I take that to be true, I monitor them on every drive.
     
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  12. Jun 5, 2020 at 9:17 PM
    #42
    Wallygator

    Wallygator New Member

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    Pretty sure on the 2020 there is nothing but maybe I am mistaken. My trans temps range from 210 to 228. 228 was in the hills and had my camping gear and dirt bike in the truck.

    This website has a lot of info...

    https://www.tundras.com/threads/2019-transmission-cooler.60550/

    EDIT: Ok so all the 2019+ trucks have is coolant running to the trans. This acts as a warmer. There is no transmission fluid running to anything, it is completely sealed.

    See post #95
     
    Last edited: Jun 5, 2020
  13. Jun 5, 2020 at 9:52 PM
    #43
    Vizsla

    Vizsla I break stuff

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    And in case your confused I’m on Tundra number 5, all gens, so I like them lol, and do stuff with them that only a few do. I do not like not being able to help members of this forum because I would have to argue with you over your long winded bs assumptions and conclusions. Have to call you a liar and break it down real, lame. Not for me. Lol. So you think that is helping, I don’t?
     
  14. Jun 5, 2020 at 9:58 PM
    #44
    Joe333x

    Joe333x Member

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    So that "warmer" is what Toyota is technically calling a cooler. In the winter it runs warm coolant to the trans to get it up to temp but it also acts as a cooler when the trans temps are higher than the coolant temps the coolant carriers that heat back to the radiator to be cooled. It's not as good as a cooler up front but it's why I said it technically does have a cooler.
     
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  15. Jun 5, 2020 at 10:03 PM
    #45
    TILLY

    TILLY Gently Used Member

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    Give it a rest, you're not helping anyone here, including yourself.
     
  16. Jun 5, 2020 at 10:37 PM
    #46
    Vizsla

    Vizsla I break stuff

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    Well I feel fine about it, but your right not helping anyone, I agree. Think I’ll be fine tomorrow though lol.
     
  17. Jun 6, 2020 at 6:32 PM
    #47
    Wallygator

    Wallygator New Member

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    Yeah I would think it's not even close to an actual cooler that directly cools the transmission fluid. A total joke as far as I'm concerned.
     
  18. Jun 7, 2020 at 8:57 AM
    #48
    sask3m

    sask3m New Member

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    I agree. I'd like to know how much higher the trans temps would be without the warmer, not much is my guess.
     
  19. Jun 8, 2020 at 12:13 AM
    #49
    Vizsla

    Vizsla I break stuff

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    Jesus jumping Christ nothing like doubling down on being an arrogant stupid ass. Just trying to help you dude. You have achieved meeting my criteria for ignore, unfortunately hope you leave here because you offer nothing. Lol.
     
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  20. Aug 13, 2020 at 5:13 PM
    #50
    Ghost23

    Ghost23 New Member

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    I have a 2015 Tundra 4.6. Does not have a trans cooler, only heat exchanger. IfI have some ideas after looking at the heat exchanger. Can I disconnect the coolant lines and connect them together to bypass the exchanger. Take the trans fluid line that feeds the exchanger and extend it to a front mount aux cooler. Then run a return like from cooler to where the exit line for the exchanger went into the trans. There are 90 elbows coming out of the trans feeding fluid to the exchanger. They make block off kits for Dodge diesels to block or bypass the exchanger and only use the aux cooler. Had one on mine. Cooled the trans a lot better with out the exchanger. Never got to cold in the winter. Our Cherokee has 2 small aux coolers and never gets to cold in the winter. My Chevelle never gets to cold, on colder days. Here is a pic from a different model. But mine looks the same. Please let me know if this is possible or anyone else has done this.
     
  21. Nov 13, 2020 at 1:00 PM
    #51
    tim73

    tim73 New Member

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    So, on my 08 5.7, it does not have the tow package. I’ve monitored the transmission fluid temp for the last few months...pulling a 1000lb trailer. Gets up to around 211f. So my 7000lb camper will most likely go even higher. I’ll feel much better with the cooler. The 4.1 vs 4.3 rear end? I’m not too worried about that, 4.10 gears are still pretty tall. So, I ordered the thermostat plate, Along with the new orings, for the round heater. I’m gonna install it in the next couple of days. Also gonna do a drain&fill. Hardest thing is getting the truck perfectly level on my lift. But hopefully goes well.
     
  22. Nov 17, 2020 at 3:52 AM
    #52
    Bammer

    Bammer I'm disinclined to acquiesce your request.

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    Transmission cooler????:notsure:
     
  23. Nov 17, 2020 at 5:15 AM
    #53
    glowblue

    glowblue From time to time

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    Damn... clicked on another transmission cooler thread thinking it was all a bad dream and it magically appeared.
    :anonymous:
     
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  24. Nov 20, 2020 at 5:16 AM
    #54
    tim73

    tim73 New Member

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    Anyway, to anybody who cares. I was able to successfully install my cooler last night. Took about 2 hours. I installed the Toyota thermostat, with two new orings for the heater. That took about 5 minutes. Then, using about 12’ of 3/8” transmission cooler hose, ran it to the front where I mounted the new cooler. The new Tstat had a pin installed, so I left it, until I could run it a while, get a good flow through the cooler. When I was happy with no leaks, I pulled the pin.
     
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  25. Nov 20, 2020 at 7:55 AM
    #55
    jordoncloutier

    jordoncloutier New Member

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

    Congrats on the upgrade , did you use any kind of protective heat shield sleeve on the 3/8" hose where it comes close to the exhaust near the bellhousing ? If not I HIGHLY suggest it !
     
  26. Nov 20, 2020 at 8:10 AM
    #56
    tim73

    tim73 New Member

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    The exhaust has a heat shield, I chose to run the hose around the oil pan, vs over the top. I did though, cut a radiator hose and wrap it around the tranny hoses. More for chafing protection, vs thermal. Then of course secured it in several places. I’ll run it a while, and check on it.
     
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  27. Nov 21, 2020 at 7:42 PM
    #57
    tim73

    tim73 New Member

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    4F97E257-81D4-4E6C-99DC-327100B59DB4.jpg. This is me running @68 pulling 6500lb trailer. Was 78f at the time. Never got above this. I’m happy...before the transmission would be 215, pulling a 1000lb mower trailer.
     
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