Has anyone else received a letter from Ford about reprogramming your 6.4? Has anyone had it done yet? Do you notice any change in the way your truck drives or acts? Taking mine in this week and want to know what to expect. I know fuel milage wont increase but want to know what I am in for after they "fix" my truck. My letter says they will be performing a program update and "T" fitting add for radiator.



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. Now I dont get my truck back till Wed. afternoon.




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