ATF temperature in AT

[lsv_palana]

Hello dear friends. I have noticed that ATF temperature it my 4L60e was 115 Celsium while i drived on snow.. what optimal temperature of ATF ? Thank you.. is 115 Celsium very high ?

 

[JPaul]

239 Degrees in freedom units (Fahrenheit). That's pretty hot I think, are you running an external transmission cooler? I prefer to keep mine no more than 200-210 (about 95 Celsius).

 

[06 H3]

Yea that is cookin'

Transmission shops tell you 240 your trans life is drastically cut short. I ran 240+ every day in the summer for years, it would shift like crap until I changed the fluid. Surprisingly it never failed! I had it rebuilt when I did the V8 swap and now run a trans cooler with a 160 degree thermostat. I run 168 cruising.

 

[lsv_palana]

Ok. It seems i need transmission cooler. Who can give advice about what exact model i need ? With link (if possible). I have v8 5.4l.

 

[4speedfunk]

Check your radiator for debris. I see you off-road to remote places with tall grass? I have pulled radiators that were completely clogged with seeds...especially along the bottom where the trans cooler portion is located. Some are so bad the radiator must be removed, power washed, and combed by hand. Of course, check both the coolant and trans fluid for cross-contamination (a common H3 problem).


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[lsv_palana]

Dear 4speedfunk thank you for answer... how about my invitation to visit Kamchatka ?