6.4 Motor Problems
2008 6.4l SD XLT Crew cab with AFE air filter and Bully Dog GT tuner.
In the last few months, I have been noticing my EGTs getting higher solo and towing my 7,000 lb trailer. I have towed the trailer for the life of the truck.
This last trip towing, I reached 1,550 degrees. As soon as I back...