Alright here's my ordeal. As I'm driving, not hard either, I'll be approaching 3rd gear. This is in my A/T. And as I'm just about to approach shift rpm (+- 2750rpm), the tranny jolts up to almost 4000rpm while keeping at a constant speed. Then after it's hit that, it decides to shift to 3rd. This only happens between the shift to 2nd and 3rd gear. Do I need a flush, or is the tranny already going at 91,000 miles?
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