Tranny temp.

[Kholloway1998]

This is more of a vehicle ?. I have a 2010 1500 Silverado with a digital transmission temp gauge. What would be considered normal temp range while pulling my travel trailer? The trailer is 20 foot & weighs 3800 lb's. Thnx...

[Neo1130]

In my 2017 Ram I've seen anywhere from 165 to 195... Anything above 200 I would start to worry... 220 I'd shut down asap....

[Old skipper]

On my Alison it seems to run 100 degrees above ambient when pulling hills it can easily run 235 at that point I may back off the throttle to control the temperature. transmissions ran 220 to 230 all day long with no reliability issues.

[Neo1130]

Originally Posted by Old skipper

On my Alison it seems to run 100 degrees above ambient when pulling hills it can easily run 235 at that point I may back off the throttle to control the temperature. transmissions ran 220 to 230 all day long with no reliability issues.

Still wouldn't risk it... That is dangerous territory to be dwelling in...



Transmission Overheating: Your Worst Enemy - Transmission Repair Guy

[Bassdogs]

When I upgraded to my 2014 WhiteHawk I was towing with an 08 Silverado 1500. Right away I noticed tranny temps over 200 and reaching 220 on super hot days and or driving in big hill country. I spoke with the master GM mechanic at my local dealership and he said "that is perfectively fine" and temps into the 230's for short periods would not cause a problem.

You should be fine with your set-up but watch your temps and feather things when it gets toward 220. Also check your tranny fluid regularily and as long as it is clear/normal you are fine. Keep in mind that you do not tow daily so the extra strain on your tranny is only a small fraction of the miles you put on your TV. A trip to Disney or a few runs to State Parks isn't going to hurt anything.

[GarlicDude]

I have a Tacoma with a towing package which includes an oil cooler. I installed a Scanguage to monitor the trans. temp. I noticed the trans temp getting very close to 200 deg. and was concerned to I swapped out the smaller cooler with a larger one.

After I installed the larger cooler I had a discussion with a local mechanic that I trust. He said that the old 200 deg. "rule" had become obsolete as the newer synthetic transmission fluids were good for a much higher temperature. Doing more research I learned that the Tacoma transmission warning light doesn't come on until about 300 deg.

I still keep an eye on the Scanguage and get concerned if it gets in the 200 deg. range.

[Scott91370]

This is going to vary a lot by manufacturer. My F-150 with no load runs as high as 203 (as well as two friends that have the same year/model truck).

[pawpaw]

My 2014 GMC 1500 trans temp runs in the upper 190s to the low 200s while towing on fairly level ground. I don't think I've ever seen it go above 215 even when towing in the mountains during the summer.

[Cosmik Debris]

I had the same question/worry when first pulling our fifth wheel, with our new f350, up a long grade with outside temp reaching 110. Asked the wife to grab the manual and try and find info on what to watch for, as far as a redline temp. Nothing. She grabbed her iPad and did some searching and found that at a set temp an auxiliary fan kicks in to help cool the tranny. I watched the temp rise and sure enough, could faintly hear the fan come on and watched as the temp declined. I have no idea what that trigger temp is, but am relieved that the higher temps have been engineered for. Now I can worry about something else.