TRNW-2: 9T65

[Tod Chretien]

 > the fluid was black but not burnt

Isn't that an oxy-moron? A contradiction of terms? LOL

I wouldn't just do a converter myself. That's just my opinion. Not sure 
why nobody else has replied.

-- 
Best Regards,
Tod Chretien
TRNW Inc.
https://www.trnw.net



On 5/20/2025 12:21 PM, Brett Karulak via trnw2 wrote:
> We have a 2018 Traverse 3.0 AWD and it has a pretty severe shudder 
> from tc.  We attempted a service and shudder additive and it did help 
> when cruising in high gears but not between shifts after 3rd i think.  
> If you throttle it in 8th or 9th it will unlock and then shudder 
> slightly back down to zero slip speed. I did go through a relearn just 
> to see if it would help anything and it didn't.  Anyways the customer 
> knew this was a patch test and it failed.  Outside of tc shudder, the 
> trans seems to work properly, the fluid was black but not burnt, and 
> the vehicle has 136k on it.  I was wondering if any of you have 
> attempted a tc replacement only or too risky with these miles? I 
> haven't been in a 9T but looks similar to a 6t40 i think.  I priced a 
> gm unit and this one is pricey, the last 9t45 i did was super cheap 
> and i replaced that one but since its a 9t65 i guess these are more 
> expensive.  HP tuners doesn't have anything for these yet, i think if 
> it only locked up in 8th and 9th the customer would drive it unitl it 
> breaks but no way to re-map this one yet.
>
> Brett Karulak
>
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