Transmission Shudder

[Impy5]

I have a 2020 JLU Willys 2.0T with about 19k miles on it. I took it in this morning to have the steering stabilizer replaced (don't think it is related to my issue, but for context). When I left and got the Jeep up to cruising speed, I felt it shudder (the best way I can explain it) in 7th and 8 gear. It feels like its trying to down shift then upshift causing my Jeep to kind of pulsate but only when cruising at speed, not when accelerating. Anyone else experience this before? I tried searching before posting and couldn't find anything, also it's not throwing any codes.

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[mwilk012]

Try manual shift mode, see if it is reproduceable or if it is actually shifting back and forth. Torque converter clutch shudder is not common with this transmission.

 

[Impy5]

Try manual shift mode, see if it is reproduceable or if it is actually shifting back and forth. Torque converter clutch shudder is not common with this transmission.

Thanks! I did end up trying that as well and it will still do it even if it holds the gear. I should have mentioned that in my initial post.

 

[mwilk012]

Thanks! I did end up trying that as well and it will still do it even if it holds the gear. I should have mentioned that in my initial post.

Well, that’s unfortunate. Only way to verify it 100% is with a good scan tool that can watchtorque converter lockup request and slip speeds, but it certainly sounds like that is what you are describing. Whether a mechanical or electronic problem, that takes more work to figure out.

 

[Impy5]

Appreciate the info, thanks!

 

[tumal]

Appreciate the info, thanks!

Whatever became of this? Any update? I experienced this today, between 40-50 mph and also at highway speeds. It does not seem to happen while under acceleration. It does happen with cruise control.

I should add I have a 2020 JLU Sport S with the 2.0T. Just turned 20k miles.

 

[Impy5]

Whatever became of this? Any update? I experienced this today, between 40-50 mph and also at highway speeds. It does not seem to happen while under acceleration. It does happen with cruise control.

I should add I have a 2020 JLU Sport S with the 2.0T. Just turned 20k miles.

I didn't end up taking it in. After I let the Jeep sit for a couple of hours, it didn't do it again and hasn't since thankfully. I figured it would have been a waste of time bringing it in because I would get the "can't replicate" line from the dealer. Yours sounds very similar to what I experienced, definitely take it in if it continues.

 

[tumal]

@Impy5 Thank you for the response. I completely understand by what you mean, until the issue is consistent the dealer will be a waste of time… they won’t replicate it.
I’ll keep an eye on it. If it continues I’ll update this thread.

 

[exploderjoe]

I have a very similar problem going on right now, started while I was down in Moab, UT.

 

[tumal]

Mine went away too. Knock on wood.

 

[betsy]

There is a reflash bulletin for a shifting problem, mine happened shifting from 7-8 gear , sort of a shudder, like it wanted to shift into 8th gear but wouldn’t quite go , dealer reflashed as per bulletin, took care of the problem

 

[SpringbokUSA]

There is a reflash bulletin for a shifting problem, mine happened shifting from 7-8 gear , sort of a shudder, like it wanted to shift into 8th gear but wouldn’t quite go , dealer reflashed as per bulletin, took care of the problem

I’m having same issue…do you have details of the reflash bulletin so I can ask dealer to do it?

 

[betsy]

I’m having same issue…do you have details of the reflash bulletin so I can ask dealer to do it?

I don’t know the bulletin number, they must have been very familiar with the problem because all I did was mention it and it was taken care of

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