Quote:
Originally Posted by remark2013
It's the 4-3 downshift that it happens, I don't feel it when running unloaded but put a loaded trailer behind me and the transmission will downshift hard into 3rd hard. I am currently running the "VRAA63S" programing. If there is another compatible program, I am open to try it.
Kent
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Download a set of VRAA7S6 calibrations and give it a run. Just DO NOT mix the VRAA6S3 and VRAA7S6 calibrations on the chip as the engine will likely stall or cause a severe stutter when going from one hex code to another.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
Last edited by cleatus12r; Wed, April 5th, 2023 at 05:04 PM.
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Wed, April 5th, 2023, 04:53 PM
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