Transmission cooler or not Thread

One reason I can think to use Toyota is that they will typically warranty the work if they do it. They will surely NOT warranty work if it's done elsewhere. Not much different that the dealers that put lift kits on the trucks they sell. Even though it's not OEM equipment it's covered under the dealer warranty.

 

I would welcome Toyota denying a claim as a result of a proper cooler installation. Toyota parts were used including their thermostat, their flexible hoses, their hard lines, and an exchanger more robust their their original design. I would love to get in front of a 6 person jury/arbitrator with the plethora of transmission life vs temperature tables. I would love to show my temperature screen shots before and after cooler installation. I said it before the smart ones pay me quick, the dumb ones pay allot more!!!! Problem is I probably won't ever have a transmission issue....

 

Mind sharing these tables as they are specific to our platform?

Last I recall, we have 1 Blackstone analysis.

 

Again Toyota says no problem and nobody proven otherwise. I hope it stays that way and my cooler was for nothing. On flip side I am not towing in S4 and babying it. It will tow at maximum posted speed limits. I began to have failures on my 20 year old Lexus. Not mechanical but electrical. Just replaced transmission solenoid. Gave to engineers at wk asked to find out why. Response soldered joints failed. Reason thermal fatigue from cycling over 20 years. Same finding with accelerator pedal position sensor. 80f to 260f plus vs 80f to 195fappears to be less taxing on equipment. Again I don’t design truck so what do I know. I know driving my $52k tundra with reasonable and generally acceptable trans temperatures make me fill good. That feeling cost me $800. We will know answer in 3-5 years for sure. I probably be on to 2021 redesign by then IF included trans cooler

if you have debt, house payment then put money towards that, let Toyota cover transmission. I have disposable income. Could retired 5 years ago, still go to work I spend what I want. Earned by living 75% BELOW my means for 30 years never hired a contractor to wk on my house outside roof. Never had mechanic fix car outside warranty bla blah blah. Hey if I bought Toyota you have little to fear when it comes to reliability!

 

So you guys think the Toyota engineers found a way to enable the fluid to run hotter and then went "d'oh, we completely forgot about the rest of the transmission"?

 

I think there is more the just the engineers saying we can make it run hotter and it’ll last til it’s out of warranty. With the new freon and condenser, they would have had to redesign a new cooler for a model truck that was being replaced soon. They don’t sell that many tundras and most will never tow or even check their trans temps. The engineers have a boss who is looking out for the bottom line and profits.

 

Extremely well said!!!!

 

Picked up my truck today from dealer , fuel pump job completed .
They refused to install the cooler As they don't want to be liable for warranty denial should any issue arises

 

If that’s a concern for DIY’s then they can remove before getting transmission diagnosed. Another reason to install yourself.

 

I'm late to the discussion.... What year did Toyota stop with the transmission fluid cooler? Even with the trailer towing package?

 

you are good.

I think 2019 and 20 don't have it.
Not sure about 2021 ... maybe they bring it back.

 

What am I missing? Redesign? Did a site member come up with an acceptable cooler for the 2019/2020's? Or am I way off?

 

From mid 10-18 the cooler was integrated with the ac condenser. From what I’ve read, 19+ they changed to different freon which isn’t as effective and required a larger surface area ac condenser so the trans cooler had to go. Seems they tested it without the cooler and said everything was good. 19+ owners here are seeing temps 50+ degrees more than 18 and previous years on the same drivetrain.

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

 

Very much this.

Thanks.

 

I think they looked at cost vs return and said it’s cheaper to warrant ones that fail under warranty vs maintain their quality commitment on 100% of vehicles sold. GM /Ford do same thing. They realize 98% don’t tow and 2% that do will warranty. F150 tow 13klbs. Sure maybe 40 miles couple times a year not day in and day out.

 

Thanks, major brain fart this morning..

 

So the TFL Trucks YouTube channel is going to be doing a video with a 2021 Tundra going up their Ike Gauntlet test this week. They said they are aware of Toyota removing the trans cooler and will be monitoring the trans temp during this test with a scan guage. I have a feeling its not going to be a good look for Toyota

 

Cool i will check that out. I really enjoy their channel especially the Ike Gauntlet stuff

 

Whew...Glad to hear that. Having followed both your posts on this topic, I thought you and @timsp8 were doing a disingenuous Click and Clack infomercial.

 

Toyota don’t care and TFL routinely bashes dianasor Toyota even though it best the new Chevy trailboss. Appears Toyota 12 years ahead of its time in 2008. Vs gm

 

We really need to know how Toyota engineers completed this same test. Were they in Drive with T/H or were they in S4 with T/H. Could be the difference between passing and failing based on other members experiences towing

 

Well if you think we got a shot, perhaps we can resurrect CarTalk ?

 

Do they run Ike internally?

J2807 is Davis Dam

 

A buddy of mine at work used his new 2019 Explorer and followed me to Florida pulling his 5klb boat. I told him it was a bad idea. He did it anyway at 55 mph, lmao, I left him behind after 20 miles doing 78mph pulling my 5Klb boat in my super duty. 32K miles on his explorer. When he got back 5 hours after me his transmission was slipping and went in for warranty. Required overhaul. But explorer towing capacity is 5Klb, what happened? confused? Ford said towing capacity 5Klbs. Once a transmission is overhauled they rarely shift the same.

 

My bad. Mixed the two up

 

Does bring up the question,

Will TFL (or rather do they) follow the same profile called out in J2807 regarding accessories, load, modes, etc - or do they just get after it and run it?

Seems like they have run a lot of previous tests, just based off quick look at the page, have not dug into the specifics on how they run it / conduct their test.

Looks like TFL previously ran the Ike test on a 2015 Tundra - will amb conditions (time of year) be comparable? I know, you don't have these answers lol - just thinking out loud here...

 

And with that said... they sure as hell are not going to redesign the transmission to run hotter temps either. (as someone suggested earlier)

It's my understanding that they tweaked the ECU for more aggressive TCC lockup. The fluid temps will benefit from this... but from what everyone is saying here and from what I've experienced... the temps are still 225+ during normal unloaded conditions.

 

Final odo - 55071mi

Degradation level will be pulled tomorrow

 

Was looking at the new F150’s with a friend and it appears they have a similar heat exchanger that Toyota did on the 2018+ trucks. Every truck with the 10 speed regardless if it had the max tow package, trailer package, or no tow package had this heat exchanger.

Only F-150’s that had a front mounted auxiliary transmission cooler was the NA V6 trucks that still use a 6 speed transmission.

Took a quick look at the Ford forums and it appears the 2018+ trucks are seeing higher temps while towing than the pre-2018 with the auxiliary transmission cooler.

Went to build and price a 2020 F150 and I noticed this on the trailer tow package:
• Auxiliary transmission oil cooler (Included on 3.3L V6 PFDI engine (99B) and Raptor only)

Also no mention of a auxiliary transmission cooler on the Max tow package, only an engine oil cooler (not available for 3.3L V6 PFDI).

 

Went through the ford forum last day and saw the same thing , they are reporting high trans temp due to the change you mentioned