Transmission Temp

[cycho]

Reference:2013 LTZ that I have owned for a few months.

Drove home from our cabin Sunday pulling a small enclosed trailer and noticed that my transmission reached 203° by the time I pulled into the driveway. Never saw it this hot. But it makes sense being that it's cooled through the radiator...right? Outside temp was in the 90's.

Just wondering if it's normal because I'll soon be pulling a much larger trailer in the Arizona Heat.

thanks

 

[Doubeleive]

Reference:2013 LTZ that I have owned for a few months.

Drove home from our cabin Sunday pulling a small enclosed trailer and noticed that my transmission reached 203° by the time I pulled into the driveway. Never saw it this hot. But it makes sense being that it's cooled through the radiator...right? Outside temp was in the 90's.

Just wondering if it's normal because I'll soon be pulling a much larger trailer in the Arizona Heat.

thanks

yes perfectly normal

 

[Joseph Garcia]

As a follow-up question, at what temperature, would one consider the temperature to be excessive?

 

[HiHoeSilver]

220+ is getting a little on the warm side imo. While heat is the enemy, the fluid doesn't start to break until over 300 somewhere.

 

[Joseph Garcia]

Thank you, HiHoe. Much appreciated.

 

[cycho]

Thanks

 

[adventurenali92]

are you running a stock trans cooler?

 

[cycho]

are you running a stock trans cooler?

Yep all stock

 

[Doubeleive]

if you are going to be hauling something bigger out there in the desert and are concerned about heat you can add a external trans cooler in addition to anything that is factory, several of the members here run the tru-cool 40k, they run about $130 online and is easy to install. I added one on mine and a B&M deep transmission pan (70392) that gives it an extra 2qt capacity. I was getting 200+ temps all the time just driving (I have a heavy foot), now my temps run about 136 +/- a few degrees it might hit 165 if i'm pushing it kinda hard and it's hot out. winter time it runs about 10 deg's lower.

 

[adventurenali92]

if you are going to be hauling something bigger out there in the desert and are concerned about heat you can add a external trans cooler in addition to anything that is factory, several of the members here run the tru-cool 40k, they run about $130 online and is easy to install. I added one on mine and a B&M deep transmission pan (70392) that gives it an extra 2qt capacity. I was getting 200+ temps all the time just driving (I have a heavy foot), now my temps run about 136 +/- a few degrees it might hit 165 if i'm pushing it kinda hard and it's hot out. winter time it runs about 10 deg's lower.

This!! I was about to suggest just this for towing bigger and heavier. I have a trucool 40k cooler on my truck that I swapped the factory cooler out for! And it’s the best under hood mod I’ve done! In normal conditions I never get above 150 trans temps. I just finished a tow job for a close family friend. She has a nearly 6,000lb sea day v hull that I get to go wakebaording behind. She stores it down off the mountain in Orange County for the winter months. I bring it up to big bear to get ready for the lake. It’s a roughly 80 mile trip across the SoCal freeways and then up over 8,000 feet in elevation at the top of the drive that brings you to big bear. And my trans never went above 180 the entire time pulling the boat! The minute I went down to back part of the highway grade from the summit into town, trans temp dropped back to 150. That cooler works hard! An upgraded trans cooler is a must have option for towing in my opinion.