Transmission operating temp

[jdereu]

Its about 50 degrees here and my transmission is running about 150 is this to high. It does have a rebuilt tranny is there a chance the tranny cooler got clogged just wondering what normal operating temp is

[belz]

Thats about what mine is at. It runs 180 in the summer.

[AgTires4295]

Youre fine. Normal temps in winter are around 150 though there are several variables in determing appropriate running temp. This is depending on the ambient temp, driving habits, truck modifications, traffic, terrain, and so on. What do you have for a cooler (stock/aftermarket)?

I run flat highway mostly with minimal stop/go traffic and it takes about 30 minutes of easy driving to warm the trans to at least 150 (not towing/hauling) this time of year. Summertime can be a different story as I quickly reach 190 on the regular.

Bottom line: Youre fine.

[jesilvas]

Highway driving, i'm 50 over ambient unloaded.
100 over with 9k pounds.

If you're shifting or locking/unlocking the tc then you'll heat more.

I made my Samsung SGH-I997 send this.

[DeGolyerent]

Originally Posted by jesilvas

Highway driving, i'm 50 over ambient unloaded.
100 over with 9k pounds.

If you're shifting or locking/unlocking the tc then you'll heat more.

I made my Samsung SGH-I997 send this.

Hey jesilvas
What type tranny cooler are you running, how do yo have it plumbed? Thru radiator too?
I run 80 over ambient unloaded. Better than 100 loaded.
John


Sent from my Autoguide iPad app

[jesilvas]

Stock. Mine is stock cooler only, no radiator.
Only thing not is a DieselSite style (done myself) external spin on trans filter. I'm sure that lowers temps some.

This was on days around 40-55*F, just cruising at highway speeds, so locked TC, no shifting. But I was cruising long enough to get the trans up to steady temp, and that's where it was.

[7.3Excursion4x4]

I just installed a 31 row cooler to replace the factory 9 row and also have a Derale atomic cool tranny cooler and when I made a 250 mile trip in 48 degree weather, my gauge never went above 125. The past few days in the Charlotte area with temps in the upper 20's and highs in the 40-50's, my gauge has not gone above 110.
My Derale cooler fan only comes on above 170

[jdereu]

Can you put up q link for that tranny cooler?

[DeGolyerent]

I bought my truck 3 years ago and I had the transmission rebuilt recently and added a triple disk torque converter and I added gauges to monitor the temps since I haul a tractor most of the time. I noticed that my temps where 100 over ambient empty and higher when hauling, I did a lot of reading and found out that after date of 02-00 the transmissions where plumbed thru the radiator first and then thru the cooler, so I tried just that and found out that my first shifts in the morning where a lot smoother being that the trans. Warmed up quicker but it also ran about 20 degrees cooler overall. The thing I am thinking of doing next is going to a 6.0 trans. cooler being that my original was replaced with a aftermarket small cooler before I got the truck. I am going to go thru radiator first then 6.0 cooler after that return to transmission, from what I read that is the best way to go as it gives cooling from the radiator when sitting or traveling slow with a load, and the benefit of a 26 or 31 row cooler in addition to keep temps really low.


Sent from my Autoguide iPad app

[7.3Excursion4x4]

I don't have a link but I did a quick search for the Derale Atomic Cooler and found Summit Racing had the cheapest price.