Originally Posted by sanitarium16
Just picked up a new 14 GC Altitude and I am a little concerned with the transmission temperatures being show. The average temperature is 200!!! Is this normal for this transmission? Seems hot to me. What temps are you guys seeing with this transmission?
Glad to find a thread on this. I saw few others that I'll read through.
I just picked up my 2014 JGC Limited Diesel on Friday. On the way home in stop-n-go traffic on a 50 deg day, tran temp got to 199.
I tow a #5000 boat in the summer, so this concerned me. In past tow vehicle, 2007 Yukon XL Denali, tran temp would be about 160 in the conditions I listed above. Towing in summer 200 tops. So JGC at 200 on a cool day and not towing is concern.
Understanding an 8 spd trans prob runs a little hotter, as does a Diesel engine.