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  1. Trans. Slipping? hesitates

    6.4 Tranny Problems
    I have a 2008 6.4 auto. When going down highway at same speed trans will act like it shifted or hesitates. Then picks right back up. No rpm change when it happens. I thought at first it was a fuel filter plugging from the way it paused., but it seems to be in the transmission now. It does it 4...