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Transmission cooler or not Thread

Discussion in '3rd Gen Tundras (2014+)' started by Mad Max, Oct 12, 2020.

  1. Oct 15, 2020 at 8:35 AM
    #121
    Dragracer_Art

    Dragracer_Art Well armed member

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    3/3 lift, 18x9 Methods,35x12.5 Terra Grapplers
    The WS Aisin fluid is easy to find.
    I ordered mine here:
    https://www.summitracing.com/parts/asn-atf-0ws

    My aux cooler install took exactly 1qt of WS fluid to top off and correct the trans fluid level... and it was done "by the book".
     
    Last edited: Oct 15, 2020 at 12:26 PM
  2. Oct 15, 2020 at 7:57 PM
    #122
    14burrito

    14burrito IG @14burrito

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    Sample bottle dropped off with the tech today.

    ATF change scheduled the 22nd.
     
  3. Oct 16, 2020 at 7:43 AM
    #123
    betotundra

    betotundra Toyota for Life

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    THIS :bowdown:
     
  4. Oct 16, 2020 at 10:03 AM
    #124
    ColoradoTJ

    ColoradoTJ O'Keefe Music Foundation Staff Member

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    For some reason, I have always had this image of Hagrid with a killer vocabulary. 88CF54DC-5A24-40C5-A146-18C221513590.jpg
     
    TTund16, Rica25, BIGUGLY and 5 others like this.
  5. Oct 16, 2020 at 3:56 PM
    #125
    betotundra

    betotundra Toyota for Life

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    Yup, that seems fairly accurate to me.
     
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  6. Oct 16, 2020 at 5:23 PM
    #126
    hagrid

    hagrid 6Al/4V

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    Good Lord, I hope not. Need to save money for fuel.
    I wish my beard was that glorious.
     
  7. Oct 17, 2020 at 10:33 AM
    #127
    Vector W8

    Vector W8 Old guy with a lot of expensive habits.

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    FFV, TRD Supercharger, Bullydog FFV Tune, 2014 Fit Kit, TRD Dual Exhaust, Sequoia Front Sway Bar, TRD Rear Sway Bar, TRD Skid Plate, TRD Pro Grill, 040 White Mirror Covers, 040 White Door Handles, Ready Lift 3"/2", Anzo 3rd Brake Light, Winjet LED Tail Lights, LED Fog Lights, LED Rock Lights, Axle Vent Mod, SDHQ Hidden Winch Mount, 12,000lb Winch. Storm Trooper Shift Knob. BMF BATL Wheels.
    I put a 20,000lb gvwr Trans Oil cooler on my 15 a few years ago, Had the trans flushed and filter replaced at 35000 miles. Did not like the color of the trans fluid at that time. So I added the cooler in line with the factory cooler. Better safe than sorry on my part.
     
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  8. Oct 17, 2020 at 11:44 AM
    #128
    Jtundra81

    Jtundra81 Just a member

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    From what I understood, the ws will have Darker color but does not necessarily mean that it is burnt
     
  9. Oct 17, 2020 at 4:28 PM
    #129
    Mad Max

    Mad Max [OP] New Member

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    Just got back from mud park. 75f in Houston. That winter for us. 215f over Houston ship channel bridge. What a joke. Biggest hill in Texas. Insane temperatures for no load. Toyota better start building spares. Their going to be covering a lot of warranty work for folks without coolers. Gets real clear real quick when see actual trans temps. I hook up up 5klb boat roll to FLA in July it will be pegged at 300. Problem is I bought cooler. Georgeous work of art better than any factory system so after install surprised if I see 200f. What can you do...,
     
  10. Oct 17, 2020 at 4:46 PM
    #130
    Vector W8

    Vector W8 Old guy with a lot of expensive habits.

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    No, It has nice bright red fluid, but when you have 550hp you tend to use it a little more often than people with 381hp, so there is a little more stress on the trans due to that.
     
    Jtundra81 likes this.
  11. Oct 17, 2020 at 4:47 PM
    #131
    Kanobi13

    Kanobi13 New Member

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    Have dealer take a look at your findings... at least document the high temps could be sensor
     
  12. Oct 17, 2020 at 5:42 PM
    #132
    Mad Max

    Mad Max [OP] New Member

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    Actually Toyota WS is dark purple. No I believe my temps. If piddle around i keep. At 205. I put cooler on next week. See difference.
     
  13. Oct 17, 2020 at 6:28 PM
    #133
    Jtundra81

    Jtundra81 Just a member

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    215 is normal for 19 and up , you don't have to be towing anything, now believe it or not , I see the same while towing my TT 4000lb , difference is I tow with s4 and tow / haul button on , I don't press the truck , only time I see it climbs on stops but goes down afterward and stay around 215 .now this is all in MA flat with some small rolling hills
     
    Last edited: Oct 18, 2020 at 4:23 AM
  14. Oct 19, 2020 at 4:08 PM
    #134
    Mad Max

    Mad Max [OP] New Member

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    Just a follow-up. I installed cooler shown on this forum, extremely nice complete set-up. 88F again today driving around Houston. Doing 80 mph on interstate for 40 minutes I was getting 191F and wouldn't move regardless of throttle input and downshifts, around town 187F, again couldn't drive it higher. This is with the transmission thermostat working, if I pinned open I probably be closer to 170F. I have no doubt I could have seen 220F without cooler if I pushed it Saturday, no towing. I don't drive or tow at 60 mph. I drive and tow at 75 mph. I will hook up my boat and see what the data is when I get a chance. No and, ifs or buts the cooler is the way to go in my opinion. When its 98F this summer without cooler trans temps would be 250F and higher. Kind of bitter sweet when installing kit and brackets and threaded holes on vehicle still exist where the "factory" cooler was used.
     
    Jtundra81 likes this.
  15. Oct 19, 2020 at 9:15 PM
    #135
    Tracy Perry

    Tracy Perry New Member

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    And I was pulling a 6000lb (approximate weight) Winnebago travel trailer this weekend in gently hilly East Texas and in S5 I saw temps hitting 248° while in S4 they held around 218° (ambient temp was 87° F).
    Honestly did not give me a warm and fuzzy feeling.
    So, I know that I'll be pulling in S4 most of the time and leave S5/D for light loads or empty.
     

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