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  #85  
Old 04-02-2014, 02:31 PM
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Re: 2014 Transmission

Peter, I am picking up my Jeep next Tuesday and driving from Houston to Boulder, CO. Would it be wise to then take several off and onramps along the way to accelerate the learning process using the sequence you outlines?
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  #86  
Old 04-02-2014, 02:57 PM
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Re: 2014 Transmission

Quote:
Originally Posted by Peter_K View Post
It will continuously relearn and adapt. This procedure is actually close to the one specified in the service manual -- I'd give it a shot first. At 500 miles with a large portion on the interstate I'd be willing to bet your clutch fill adaptive counts and pressure adaptive counts are pretty low and there's plenty of room for improvement. As an example, on my 8-speed the counts were still below 5 after 1000 miles--basically because my driving at that point hadn't been conducive to the learn cycle. I did the above procedure and after an afternoon the counts were over 10 for each clutch (A through E) and the shifting was dramatically improved.

Give it a shot. If that doesn't help, then take it back to the dealer and tell them to clear the adaptive memory and have them do the full learn drive cycles.
Thanks for your reply Peter. Would you suggest that I perform the method that you mentioned earlier while I am at 500 miles? Would that make any difference? Also, once you achieve counts above 10, does the memory store them above 10 even if you decide to do some crazy driving in town or on the interstate? Also, how do you check the counts for each clutch?

Instead of taking the car back to the dealer to clear the adaptives, can I just do it at home by removing the negative battery terminal and letting it sit for 45 mins?
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  #87  
Old 04-02-2014, 04:02 PM
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I'd just go ahead and do the procedure now. You can't really check the counts yourself--I happen to have access to a WiTech dealer tool set. However, the fill counts will continue to be updated indefinitely. You're just helping them do so more rapidly by doing this procedure.

I'm unsure if the transmission learn values in this setup are non-volatile or not. I can find out if disconnecting the battery will clear them.
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  #88  
Old 04-02-2014, 04:15 PM
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Quote:
Originally Posted by Peter_K View Post
I'd just go ahead and do the procedure now. You can't really check the counts yourself--I happen to have access to a WiTech dealer tool set. However, the fill counts will continue to be updated indefinitely. You're just helping them do so more rapidly by doing this procedure.

I'm unsure if the transmission learn values in this setup are non-volatile or not. I can find out if disconnecting the battery will clear them.
Thanks a lot for your cooperation. I will do that procedure this Friday when I go back home ( wife has the jeep atm).
Also if you could find out whether disconnecting the battery will clear them, that would be great! Thanks in advance
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  #89  
Old 05-11-2014, 06:04 PM
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2014 Transmission

Question on transmission in sport mode (v6). I have had the latest flashes for trans as of this writing and in Eco mode there are times it downshifts wrong with a slight lurch/surge but in sport mode the up shifts are very hard and downshifts literally feel like I am hitting the brakes for awhile. Is this normal?


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  #90  
Old 05-11-2014, 06:19 PM
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Re: 2014 Transmission

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Originally Posted by Briant73 View Post
Question on transmission in sport mode (v6). I have had the latest flashes for trans as of this writing and in Eco mode there are times it downshifts wrong with a slight lurch/surge but in sport mode the up shifts are very hard and downshifts literally feel like I am hitting the brakes for awhile. Is this normal?


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Hi

I am experiencing the same issues and don't think this is normal at all. I have had all the latest flashes performed and the control valve body replaced, but the car is still jerks in Eco mode. It does worse in sport mode as I can literally feel the car lunge forward on the highway when it shifts up in gears and while its shifting down and coming to a complete stop.



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Old 05-11-2014, 06:25 PM
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Re: 2014 Transmission

Quote:
Originally Posted by Shaakra View Post
Hi

I am experiencing the same issues and don't think this is normal at all. I have had all the latest flashes performed and the control valve body replaced, but the car is still jerks in Eco mode. It does worse in sport mode as I can literally feel the car lunge forward on the highway when it shifts up in gears and while its shifting down and coming to a complete stop.



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That is what my sport mode seems to shift like also. In Eco it's not as bad just at times downshifting it surges/lurches briefly. I don't feel this is normal but want some feedback before I request a fix. The last time at the dealer they said there are no software updates for this but I want it fixed regardless.



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  #92  
Old 05-12-2014, 02:57 PM
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Re: 2014 Transmission

New to the thread, but started something similar in a different location and thought I would post some findings here as well.

I just got off the phone from the service rep and he explained my vehicle (2014 Laredo 3.6 4x2) was the most up to date with the software and there was no additional updates needed to fix the shifting issue. He also mentioned the Bulletin I provided (number 21-007-13 REV C date 12/18/13) was not for my model which didnt quite make since since it matched with all the criteria listed.

He was trying to explain it was trying to "learn" the way I drive and it takes some time to do that. I bought the car with 5,000 and he said the shifting inconsistencies came from how the previous owner drove it.

He said he could "reset it" (not sure if he meant the TCM or not) and the service department would have to go through an "initial driving routine" to have it "re learn" back to the factory settings, but they had to do that and not me? Not quite sure why that was the case.

Asked to talk to the technician and the answer I got was "Its too difficult to explain". Attached is the "Initial driving routine" they would need to do to re-set it. 9 pages means they clearly know something is up...

He said my TCM firmware/number/whatever was 68225629-AC. Not quite sure what that number represents. Maybe some of you know
Attached Files
File Type: pdf April 25th 2014 - Shift Enhancements Service Bulletin.pdf (586.4 KB, 26 views)
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  #93  
Old 05-13-2014, 07:35 AM
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Re: 2014 Transmission

Quote:
Originally Posted by ghagen View Post
New to the thread, but started something similar in a different location and thought I would post some findings here as well.

I just got off the phone from the service rep and he explained my vehicle (2014 Laredo 3.6 4x2) was the most up to date with the software and there was no additional updates needed to fix the shifting issue. He also mentioned the Bulletin I provided (number 21-007-13 REV C date 12/18/13) was not for my model which didnt quite make since since it matched with all the criteria listed.

He was trying to explain it was trying to "learn" the way I drive and it takes some time to do that. I bought the car with 5,000 and he said the shifting inconsistencies came from how the previous owner drove it.

He said he could "reset it" (not sure if he meant the TCM or not) and the service department would have to go through an "initial driving routine" to have it "re learn" back to the factory settings, but they had to do that and not me? Not quite sure why that was the case.

Asked to talk to the technician and the answer I got was "Its too difficult to explain". Attached is the "Initial driving routine" they would need to do to re-set it. 9 pages means they clearly know something is up...

He said my TCM firmware/number/whatever was 68225629-AC. Not quite sure what that number represents. Maybe some of you know
I just had my dealer perform this process and the car seems to be shifting smoothly, let's see how long this lasts
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  #94  
Old 05-13-2014, 12:52 PM
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Re: 2014 Transmission

Update from yesterday.

The dealership called me back and said the technition had some extra time to take a look at it, and after driving around, noticed as well the hard downshifting from 3-2-1.

Attached is my service report from yesterday, and it looks like they did the procedure in the TSB #21-12-14.

Drove it home and did notice a difference from before. Much quicker shifts, and smoother on the lower gears. I feel that TSB does apply to many shifting problems if you are experiencing similar issues. Not sure how long it will last, but I hope it will learn the way I drive rather than the previous owner who put 5,000 on it...

Hope that helps...
Attached Files
File Type: pdf 5-12-14 Jeep Service Report.pdf (78.7 KB, 26 views)
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  #95  
Old 05-13-2014, 06:03 PM
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Re: 2014 Transmission

Before I stop driving jeep for summer I want to get this done. Mine has had all updates and in beginning of last flash it was so smooth. Now 1-2 2-3 3-4 are rough and some rough downshifts too. My summer car has a modified VB for harder/firmer shifts 1-2 2-3 and it shifts smoother then the jeep.
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  #96  
Old 05-14-2014, 01:49 PM
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Re: 2014 Transmission

Well hate hearing all these problem cause mine is a road rocket and most of it is the tranny, I've never had such a powerful tranny I'm eating up the Explorers and Arcadia's even a BMW X5 in the neighborhood I couldn't be happier with mine.
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