2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14 - Page 5 - Jeep Garage - Jeep Forum

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  #49  
Old 10-07-2014, 07:47 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Before the upgrade, gear corresponded to speed, e.g, 4th gear~40kph regardless up shifting or down shifting, which was quite accurate. My concerns now, after the upgrade, are 1) down shifting: 2 gears higher than corresponding speed, and 2) hard acceleration which I didn't mention in the initial post. I did a few rounds of road test on M4 with only a TAD hard acceleration which one would normally do when overtaking. The experiences are quite different: 1) up shifting in gear is slower than increase in corresponding speed, 2) gear changed to 7th after speed reached 75kph, and didn't increase to 8th until speed reached 95kph, and I could feel that engine/rev "over labored" before gear increased to 8th. I tested a few times, and yielded the same result every single time.

It appears that symptoms I experience now are what TSB intends to fix. Buggar!

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  #50  
Old 10-08-2014, 08:15 PM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

I have these exact problems now only when cold. 2014 GC with 11k miles. Has been doing this crap for 2 months. No luck so far. At the shop tonight so they can drive cold tomorrow.
Will advise.
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  #51  
Old 10-09-2014, 01:24 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Quote:
Originally Posted by Rrshevchik@gmail.com View Post
I have these exact problems now only when cold. 2014 GC with 11k miles. Has been doing this crap for 2 months. No luck so far. At the shop tonight so they can drive cold tomorrow.

Will advise.

After you had the TSB applied to the car?
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  #52  
Old 10-09-2014, 05:45 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

If you mean the flash, yes. Done already.
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  #53  
Old 10-09-2014, 06:20 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Quote:
Originally Posted by Rrshevchik@gmail.com View Post
If you mean the flash, yes. Done already.

I meant symptoms you experienced happened only after the flash being applied? Because this is what happened to me. It was ok before the flash being applied.
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  #54  
Old 10-13-2014, 08:15 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Okay, so its been awhile since I had them "train" the transmission (I do not believe they applied the flash) and its actually been pretty good. The hard downshift from 2-1 which was the most pronounced issue is gone. I still get an occasional lurching shift when I go from hard acceleration and take my foot complete off the gas but thats rare.
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  #55  
Old 10-14-2014, 08:56 PM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

V8 Hemi here....

Does anyone else feel like the coasting or downshifting is similar to a governor feeling in a golf cart? For the life of me, I can't figure out why a car would not coast smoothly.

I returned my V6 for a V8 in hopes this would improve. It has, but the shifting is still a pain.
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  #56  
Old 10-14-2014, 09:29 PM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Quote:
Originally Posted by Chivvalry View Post
Okay, so its been awhile since I had them "train" the transmission (I do not believe they applied the flash) and its actually been pretty good. The hard downshift from 2-1 which was the most pronounced issue is gone. I still get an occasional lurching shift when I go from hard acceleration and take my foot complete off the gas but thats rare.
I'm in the same boat...I have 3500 miles since my last TCM reset and my shudder is very infrequent and no unusual thumps...but I've been driving long distances with a consistant style. I have a feeling if I drive more aggressively, the shudder would return. I think the adaptive algorithm gets confused.

The surge from letting off the accelerator right before a shift is unavoidable. The stored inertia in the motor has to go somewhere and the boost hasn't bled down so you get a little push. Its more apparent with our higher torque motors. I've played around with it since everyone is very sensitive to transmission behavior. Letting off the accelerator less abruptly seems to smooth it out.
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  #57  
Old 10-21-2014, 12:04 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Had my free 1000km check-up done yesterday and this TSB applied.

I do about 20km of driving in peak hour freeway traffic each day at 0-30km/h with a lot of stops. I noticed the 2>3>4 and 4<3<2 harsh shifts in ECO mode. The kick-down at very light throttle was very harsh at times. Turning ECO off made it a little better but still not great. Reported this to my service department and they carried out the update.

Initial impressions thus far are positive. First impressions are the car feels a lot more responsive, almost like the converter locks sooner. Feels a lot more responsive even with ECO mode on. The shifts at low speed and light throttle have been greatly improved.
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  #58  
Old 10-27-2014, 05:11 AM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Hello ,. I have similar problem on my 2014 laredo e .. I try 2 use the sport mode and the Eco keeps on .. And it jumps from 1 to 3 .. Took it to the dealer and they upgrade or reset it .. It works for a 3 days . Is still the same and then a notice the speedometer blinks
And my car has only 455 miles..


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  #59  
Old 12-12-2014, 06:17 PM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Quote:
Originally Posted by XtRmn8 View Post
Had my free 1000km check-up done yesterday and this TSB applied.

.
What free 1000k check-up?

I just bought mine on the 26/11, I asked my salesman about the first service and he said they don't need it! Pointed to the service sticker on the windscreen that shows 10k

Have I been shafted?

PS: just clocked 1250km now
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  #60  
Old 12-12-2014, 08:16 PM
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Re: 2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14

Not really, the 1,000km check up is basically to make sure all 4 wheels are still there and fix any issues you have found already. I didn't bother with mine.
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