i'm not sure if i just didn't notice last year or if i don't remember but the past few mornings have been pretty cold and i noticed that my truck won't shift into o/d until the coolant temp guage reads about 130*. I did have a CEL pop up about a month ago for the torque converter clutch solenoid but i cleared it out and have not had any problems since.

 

that's normal.

 

ok thank you.