TRNW-2: 6T30/40 Shift Adaptation

[transpack transmissions]

I had a 6L80 due that. It would act up as you drove it. Once you reset the
trans adapt, it would drive like a new truck up until it started to act up
again. It was a bad TEHCM

On Fri, Dec 19, 2025, 12:08 PM Steve Everett via trnw2 <trnw2 at trnw.net>
wrote:

>    I don't have any screenshots or snap on files on those,  I do have one
> software file for a 6t40 where I cloned a techm using hp tuners,
>
>    But I have replaced more 6t40 techms than I have 6t70 techms, for
> various issues
>
>    Steve
>
> On Fri, Dec 19, 2025 at 2:35 PM Healy Powertrain via trnw2 <trnw2 at trnw.net>
> wrote:
>
>> Hello Group!
>>
>> Does somebody have a screen shot of what the shift adapt values are
>> supposed to be called and the corresponding values?
>> My scanner is showing 2 lines per gear change and theyre all showing 0
>> Trans is behaving smooth after initial Adapts Reset but gradually fades
>> into minor binds and flares after about 1500 miles, up to a point where
>> they get worse to justify another adapt reset, repeating the same cycle
>> over and over.  I suspect a bad TCM on the TEHCM.
>> Waddayall think?
>>
>>
>> Best Regards,
>>
>> Marcel Verwijmeren
>> Healy Powertrain
>> Driveline Solutions
>> T 06 57745407
>> E info at healypowertrain.com
>> W www.healypowertrain.com
>> This message was sent from the TRNW Technical Discussion Forum (trnw2).
>> You were sent this message because you have subscribed to our mailing list.
>> If you don't want to receive these emails from TRNW in the future, please
>> unsubscribe here:
>> https://www.trnw.net/unsubscribe.php?forum=2
>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>> <https://www.google.com/maps/search/2825+Walnut+Terrace,+Modesto,+CA+95355?entry=gmail&source=g>
>
> This message was sent from the TRNW Technical Discussion Forum (trnw2).
> You were sent this message because you have subscribed to our mailing list.
> If you don't want to receive these emails from TRNW in the future, please
> unsubscribe here:
> https://www.trnw.net/unsubscribe.php?forum=2
> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.trnw.net/pipermail/trnw2/attachments/20251219/afcbd30f/attachment.html>