ATF Temp-How hot is too hot?

If you are towing you need more than just a 70268. I think a larger cooler running inline with your 70268 would be enough. You should be able to find a large enough one with 3/8's barbs I would think but if you want to go with 1/2" barbs that's up to you.
 
Already have the 70268 installed... so I think I have enough room for the larger 1/2" barb type but I'm thinking the 3/8" barb type comes with a bypass for cooler weather right?!? (low pressure drop feature?) Is there any chance of being TOO COOL when it comes to winter (Cincinnati) by using one of the larger coolers without the bypass? Don't plan on hauling boat around in the winter... lol If winter temp may be an issue, I suppose I will just add the 70264... just rather err on side of bigger is better unless it isn't!

Can I adapt 3/8 hose coming out of 70268 onto the 1/2 barbs? or can barbs be swapped out for 3/8? or am I just rambling and being stoopid and should just get the 70264 inline with the 70268 and hush up!? lol Thx folks :-)
 
They make brass fittings for everything so yes you can adapt but I would stick with adding the 70264.
 
I'm resurrecting this thing...

The previous owner seems to have installed a tranny cooler, but today I am starting to wonder if it was installed correctly because according to my SG II my ATF was anything but cool.

Here's the scenario:

Left Cincinnati, OH last night around 9 PM. Drove 19 hours (straight, with a few stops for gas obviously) to Divide, CO.

On the interstate at 70-75 MPH in Kansas I routinely saw 212-220 when it was climbing grades.

When climbing Ute Pass I saw it get to 235 at times.

Should I be worried at this point? And how do I know if my cooler is actually cooling/hooked up correctly?

Thanks!
 
I'm resurrecting this thing...

The previous owner seems to have installed a tranny cooler, but today I am starting to wonder if it was installed correctly because according to my SG II my ATF was anything but cool.

Here's the scenario:

Left Cincinnati, OH last night around 9 PM. Drove 19 hours (straight, with a few stops for gas obviously) to Divide, CO.

On the interstate at 70-75 MPH in Kansas I routinely saw 212-220 when it was climbing grades.

When climbing Ute Pass I saw it get to 235 at times.

Should I be worried at this point? And how do I know if my cooler is actually cooling/hooked up correctly?

Thanks!

that sounds about right. honestly for you if your not wheeling it or towing with it then i would not worry to much about it. if you think about it, the stock set up is designed to keep the temps around 190 or so depending on your thermostat, so climbing a hill/grade and only increasing 30-40* is not that bad. especially if you do not prolong that temp. now if you towed or climbed hills on a regular basis and saw temps like that all the time, id say yeah do something. but an occasional higher temp like that is not something to worry about. what are the temps you normally see in day to day driving?
 
I'm resurrecting this thing...

The previous owner seems to have installed a tranny cooler, but today I am starting to wonder if it was installed correctly because according to my SG II my ATF was anything but cool.
And how do I know if my cooler is actually cooling/hooked up correctly?

Thanks!
If installed sideways the inlet is supposed to be on bottom with the outlet on top. B&M recommend not installing it with the fittings pointing down.
I question whether the 70268 with 13,000 btu's is robust enough as a stand alone cooler. I think it is meant to be an auxiliary cooler working in tandem with the existing one. Just a thought.
Yes, i understand pink milkshake and separation of church and state as an abiding tenet of 3rd gen ownership.
Any idea if thermostat jiggle valve is at the correct 6 o'clock position? vs incorrect 12 o'clock (some people have theories that conflict with the FSM).
You should place more faith in thekid's info than mine if they conflict.
 
that sounds about right. honestly for you if your not wheeling it or towing with it then i would not worry to much about it. if you think about it, the stock set up is designed to keep the temps around 190 or so depending on your thermostat, so climbing a hill/grade and only increasing 30-40* is not that bad. especially if you do not prolong that temp. now if you towed or climbed hills on a regular basis and saw temps like that all the time, id say yeah do something. but an occasional higher temp like that is not something to worry about. what are the temps you normally see in day to day driving?

At sea level, every now and then I see 200 after some stop and go traffic or something, but usually I seem to stay fairly consistent around 175-185 on the interstate.

I did some knocking around today and only went to 210 a couple times when downshifting on some steeper climbs.

My main worry is that while I will not be wheeling, per se, but to access some of the trail heads I will be backpacking from I know I will be in 4wd, and possibly 4lo sometimes, for a decent amount of time. I will take some pictures of my setup and see what you guys think.

Thanks.
 
At sea level, every now and then I see 200 after some stop and go traffic or something, but usually I seem to stay fairly consistent around 175-185 on the interstate.

I did some knocking around today and only went to 210 a couple times when downshifting on some steeper climbs.

My main worry is that while I will not be wheeling, per se, but to access some of the trail heads I will be backpacking from I know I will be in 4wd, and possibly 4lo sometimes, for a decent amount of time. I will take some pictures of my setup and see what you guys think.

Thanks.
4lo is OK as you will be using your gearing to do the work. but say you had higher loads, like towing a trailer, or driving in deeper snow, or driving in sand things will tend to heat up rather fast. especially if in 4hi or 2wd. but being as though you don't hardly do that and you don't have big tires or bumpers ect I would not worry too much. those temps are nothing to be concerned about.
 
4lo is OK as you will be using your gearing to do the work. but say you had higher loads, like towing a trailer, or driving in deeper snow, or driving in sand things will tend to heat up rather fast. especially if in 4hi or 2wd. but being as though you don't hardly do that and you don't have big tires or bumpers ect I would not worry too much. those temps are nothing to be concerned about.

Thank you. You have helped ease my mind considerably.
 
[MENTION=60147]the kid[/MENTION] how often do you need to use your fan?
well my fan is on a thermo switch, meaning that it comes on when it needs to automatically. but let's take today for example. I heard it come on today on my way home from work in stop and go traffic. them outside ambient temp was around 80* and I was on residential streets going stop sign to stop sign. then got stuck at a trafficking light and train crossing and the rest of the way home was bumper to bumper basically. so it was on for most of my commute. on a typical day I probably never have it come on, but if my day consists of a lot of stop and go traffic especially on warm days then yeah it on
 
I hope the fact you are reading temps coming out of the tranny before the cooler is what makes your setup seam to run so hot.

I'm almost finished upgrading to dual coolers and the fan. Both are rated at about 20 000 BTU (one wasn't enough once the armor and bigger tires got installed) but I'm still kind of worried its not going to be enough when I'm towing a small trailer and have all my hunting gear with me.
No condenser and the left cooler sits just under the grill and technically gets no direct air flow. I'm only speculating as I haven't seen any one else on here run dual coolers.

 
Fwiw my thermo switch is on the return line after both coolers... So it only trips the fan when absolutely needed. The fan typically comes on when the temp gauge is over 210
 
Fwiw my thermo switch is on the return line after both coolers... So it only trips the fan when absolutely needed. The fan typically comes on when the temp gauge is over 210

Oh shit..... whats the thermo set to turn the fan on at (whats do you figure the temp coming out of the coolers is at) ?

Man... now I'm questioning my set up....
 
At sea level, every now and then I see 200 after some stop and go traffic or something, but usually I seem to stay fairly consistent around 175-185 on the interstate.

I did some knocking around today and only went to 210 a couple times when downshifting on some steeper climbs....

Thanks.

Mine does just about the exact same temps. What amazes me is how quickly the temps can drop from 210 (after climbing 500 ft or so on a hill), it will drop to 175 in 30-45 seconds. Yours do the same?
 
Oh shit..... whats the thermo set to turn the fan on at (whats do you figure the temp coming out of the coolers is at) ?

Man... now I'm questioning my set up....
my switch is set to com on at 180-185* and won't shut off until temps drop to 160-165*. typically driving around town I'm around 180* at the gauge, and then on the hwy I'll see about 150-160*. I'm guessing the cooler cools that by about 20-30* on average. but my first cooler has the built-in low temp bypass valve so if the temps get to cold it just goes strait through and out to the next cooler.
 
[MENTION=60147]the kid[/MENTION] I have to thank you.

Last night while falling asleep I was rethinking the cooler positioning. I've decided the second cooler will probably not shed off enough heat down low and direct airflow was more important on to it rather then the rad.

If we ever meet, first round's on me :beer:



Got lucky, reused the zapstrap type mounts, and didn't have to cut any more lines just reposition them.



 

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