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2003 7.3 shifting issue

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Old Jan 19, 2020 | 07:59 PM
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Troy20037.3's Avatar
Troy20037.3
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2003 7.3 shifting issue

Need some serious help on this one guys! Trucks a 2003 7.3 with some shifting issues
the truck has 175/100 injectors with swamps tuning, adrenaline hpop, 66/73 KC turbo ebv deleted, regulated fuel return, 5 inch exhaust, and a fully built tranny with a new triple disc converter since the single disc billet blew up🙄

when driving the truck with a light foot the tranny shifts fine no problems but when you get on it say from a dead stop every time it goes to shift it will lock and unlock the convertor about 3 times then shift and this is between every gear I did have the computer refurbished, just had swamps update the chip, new speed sensor in the rear end and nothing is fixing the issue!!! Any input or help would be appreciated guys

 
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Old Jan 19, 2020 | 09:11 PM
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Mark Kovalsky's Avatar
Mark Kovalsky
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The converter locks and unlocks on the PCM's commands. I strongly suspect a problem with your tunes.
 
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Old Jan 19, 2020 | 09:48 PM
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I had them change the tunes they were using and it still did the same thing? You have any other ideas? I pulled the chip out earlier and it shifted weird like that once so I’m at a standstill with it
 
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