altaforddealer Posted February 24, 2013 Share Posted February 24, 2013 Hey all, I have just got a new 2013 F150 limited. Loving the truck so far but I'm seeing a few issues. While pulling about 4500 lbs I was watching my transmission temperature climb into the mid 90's Celsius 200+ Fahrenheit, I am not sure but doubtful if this truck has the max trailer tow on it, as it wasn't available as an option on this trim level but doesn't specify if it comes in it standard. I'm travelling in temperatures just below freezing to -15 Celsius. My experience and research says this temperature is too hot, can anyone give me any input as to what they're seeing and if temps that hot are ok? Quote Link to comment Share on other sites More sharing options...
YT90SC Posted February 25, 2013 Share Posted February 25, 2013 The 6R80 has a thermostat built into the transmission, just above the valvebody, in the cooler circuit. They run far warmer than they used to, by design. The t-stat begins to open around 195 degrees, if I remember right so to see fluid temps slightly higher than that when towing is not anything to be alarmed about. The cooling fan should ramp up somewhere around 220 or so to help bleed off the excessive heat, again if I remember right. Quote Link to comment Share on other sites More sharing options...
theoldwizard Posted February 25, 2013 Share Posted February 25, 2013 (edited) Transmission oil is good well past 250F, and that is the "old" dino oil. Full synthetics will probably go to at least 300F. Edited February 25, 2013 by theoldwizard Quote Link to comment Share on other sites More sharing options...
graysailor Posted November 9, 2014 Share Posted November 9, 2014 The hotest I have ran is around 220F. Cools down quite rapidly on even a slight descent. This would be on a 2013 Lariat. Quote Link to comment Share on other sites More sharing options...
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