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Power Strokes
7.3 Aftermarket
tuners; transmission control inputs
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[QUOTE="mandkole, post: 1225722, member: 4630"] guys, some of you may have been reading my posts on my recent TCC issues. Im not completely certain, but it really seems that the locking/unlocking issues have increased with the larger tires. This is not a trans issue, the PCM is commanding the unlock. (The speedo has not been recalibrated.) My issue is that the converter clutch seems to be much more sensitive to the PCM unlocking it with the throttle input. Ive been told the tuning inputs affect this and tuners will often increase the ability to unlock to keep a big single able to spool. What Im wondering is if the TCC unlock sensitivity was increased, but now the tire size increase has increased load to where it requires more throttle and has made it even more prone to unlocking now. Still not totally sure its not the trans, but want to have a little conversation about the changes in the way the PCM commands the controls. [/QUOTE]
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tuners; transmission control inputs
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