Ok I need some help with truck in sig. I have high EGT issues with my truck both unloaded and loaded. I tow a 5500 lb TT. I have changed every fluid exept diff fluid. New fuel filter, Air filter is good only has about 6000 miles on it. I have checked up pipes there is no soot. Did a boost leak test today, no leaks. Last week data loged with AE while towing and nothing was abnormal. What else can I check? I can hit 1200+ with no problems. I am not able to use full potential of truck because of this. Any ideas?