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1999 to 2003 7.3L Power Stroke Diesel
7.3L Power Stroke Diesel equipped Super Duty and Excursion.

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  #1  
Old Thu, January 6th, 2011, 09:58 AM
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You are using the most popular hex code we have for the FU, VRAA6S3 (PMT1). It is the same exact version of the program that every other PMT1 FU customer has access to. If there is something strange going on with the shifts, it would occur in every truck that is using the VRAA6S3 tunes with their FU. Is your transmission modified in any way? Sometimes shift kits will cause what you describe.
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Old Thu, January 6th, 2011, 09:56 PM
tpearia tpearia is offline
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Its a PMT2. No tranny mods that im aware of, doesnt feel like a shift kit.

It does have (slightly) different tire size on it from stock, which was given on the order form, if that makes any difference.

If I just knew that maybe the converter locking up sooner or something is causing what im feeling, thats fine. I have no issues with it as long as i know thats what its supposed to feel like.

Thanks!
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Old Thu, January 6th, 2011, 10:10 PM
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Your computer code may be PMT2, but the tuning on the chip is PMT1.
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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.
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Old Fri, January 7th, 2011, 04:58 PM
tpearia tpearia is offline
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Oh, ok, my apologies. Didnt know if that made a difference or not.

Thanks for your input!
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Old Sat, January 8th, 2011, 12:18 AM
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I suspect you're feeling the 2-3 shift and then an immediate torque converter clutch apply at certain accelerator pedal positions (happens when the 2-3 shift happens just above 35 MPH).
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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.
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