I picked up a 99 7.3 for a work truck with a bad torque converter. Replaced it and did a over haul on the trans. Supposedly it has a transmission module that makes it shift harder. It did but I'm thinking maybe the module that shorts out the solenoid also screwed the torque converter. I'm a cummins guy with no clue. the so called module is right under the fuse panel. Any help and advice to what this is is greatly appreciated.
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