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  #205  
Old 07-23-2013, 03:41 PM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by adthebadstud View Post
Just an update, I don't remember if anyone else is in the same boat. But I was one of the people who was told that everything is normal and there were no error codes and that's just how the transmission is and blah blah by my dealership. I got a call yesterday (missed it) and a follow up call today from Penni with Chrysler who is assigned as my case manager. She wanted to follow up on all of the issues that I had brought my Jeep in for (plastic liner in the cargo area replacement, uconnect issues, and the tranny).

She seemed very interested in all of my concerns. Took notes on everything including JeepGarage.org and this thread. I kept saying how Chrysler hasn't acknowledged a problem but that there were people complaining about it online. She said she would "try" and make sure that all of this information gets to a tech specialist and someone checks it out to do some testing. I made sure to let her know about the battery reset and how it helps for roughly 500 miles or so, but then the tranny is a crappy learner.

Not related to this thread she also was asking about the radio issue and how the dealership downgraded my software. She also said she'd try and take care of that for me which probably meant ordering a new radio. Also, she will provide me with a rental should I need one when I bring my Jeep in this Friday.

I'll keep you guys posted if I hear anything regarding the transmission.
Wow!. Keep us posted. I just turned over 6,500 miles on my Jeep and it seems like the tranny is getting worst!
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  #206  
Old 07-23-2013, 08:17 PM
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Re: If your 8spd trans is rough, put your hand up

Hello everyone, I to have been having Trans problems. It seams the easyer on the throttle after a stop, the less I can sence it .It seams with a heavy foot, the trouble is real notesable. I haven't tryed the reset procedure, so i don't know if it will solve the situation.
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  #207  
Old 07-23-2013, 09:14 PM
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Re: If your 8spd trans is rough, put your hand up

Just my 2 cents, I guess I'm another victim of rough transmission. I have a V6 Limited and it's quite annoying all the jerking etc. I find this unacceptable, I hope jeep is coming up with a resolution to this problem. My question to you is; is there somewhere that we as a group can complain to Jeep about this problem, to express our dissatisfaction and to show that we are not happy with the product given. It's one thing to express our sorrow here, but another if Jeep is aware.
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  #208  
Old 07-23-2013, 09:22 PM
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I hope that each of you with this problem have been to your service department and had a work order written on the problems.

This is the fastest way to get a solution.
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  #209  
Old 07-23-2013, 10:08 PM
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I hope that each of you with this problem have been to your service department and had a work order written on the problems.

This is the fastest way to get a solution.
Hey guys i figured i would throw my 2cents in for what its worth i am a chrysler tech at a dealer in the Chicago area and i can tell you i know what your talking about these transmissions are some harsh shifters i feel it on everyone I've driven from 1 mile on it to 9000 miles on it. To me they downshift harsh when coming to a stop they always feel like there hunting for a gear and every thing else in between. I am confident that this is a software issue that will eventually be resolved with a flash of "reprogramming" as for your dealers telling you its normal well it pretty much is. Every 8 speed in a grand does it that I've seen Now i am not saying that this is acceptable i am just saying before you beat up your dealer to much just realize that we are also being told that its a normal characteristic of this trans by chrysler and they are at the mercy of what chrysler says. I can tell you that the best thing you can do is to call them and let them know your frustration with this trans because these issues do get escalated to engineering as the complaints start racking up. I can also tell you that i have not seen 1 trans failure on an 8 speed yet and my dealer sells alot of them . As far as the battery disconnect trick goes this is erasing the learned adaptives In the trans controller and will not provide a longterm fix. As you keep driving you will probably notice this issue coming back if it makes a difference at all .
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  #210  
Old 07-23-2013, 11:40 PM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by JeepTek78 View Post
Hey guys i figured i would throw my 2cents in for what its worth i am a chrysler tech at a dealer in the Chicago area and i can tell you i know what your talking about these transmissions are some harsh shifters i feel it on everyone I've driven from 1 mile on it to 9000 miles on it. To me they downshift harsh when coming to a stop they always feel like there hunting for a gear and every thing else in between. I am confident that this is a software issue that will eventually be resolved with a flash of "reprogramming" as for your dealers telling you its normal well it pretty much is. Every 8 speed in a grand does it that I've seen Now i am not saying that this is acceptable i am just saying before you beat up your dealer to much just realize that we are also being told that its a normal characteristic of this trans by chrysler and they are at the mercy of what chrysler says. I can tell you that the best thing you can do is to call them and let them know your frustration with this trans because these issues do get escalated to engineering as the complaints start racking up. I can also tell you that i have not seen 1 trans failure on an 8 speed yet and my dealer sells alot of them . As far as the battery disconnect trick goes this is erasing the learned adaptives In the trans controller and will not provide a longterm fix. As you keep driving you will probably notice this issue coming back if it makes a difference at all .

Have you also seen that this is more of an issue with the 3.6 than the 5.7 models as some have posted on here?
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Old 07-23-2013, 11:45 PM
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Originally Posted by jp467 View Post

Have you also seen that this is more of an issue with the 3.6 than the 5.7 models as some have posted on here?
I would say its more pronounced on the 3.6 but i feel it on the Hemi to
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  #212  
Old 07-24-2013, 02:08 AM
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Re: If your 8spd trans is rough, put your hand up

I think all we can do is be patient. We just have to live with it untill a fix is found. I don't know who we can contact as a group. I think there are phone # in the owners manual to call Corporate in Detroit MI, Also as owners we need to let our dealers know that we are NOT happy.
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  #213  
Old 07-24-2013, 06:28 AM
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Re: If your 8spd trans is rough, put your hand up

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Originally Posted by JeepTek78 View Post
I would say its more pronounced on the 3.6 but i feel it on the Hemi to
JeepTek,

It is not my intention certainly to beat up on the dealers but as a person who works for dealers of all brands I know phoning in won't do much. If Chrysler is not seeing documented verification of issues and calls from you guys to the technical assistance center nothing will get done.

A number of posts ago, I told people they need to demonstrate the problem in comparison to vehicles on the lot and there are people who have more severe issues. I am aware of transmissions that have been replaced and those users did not have issues afterwards (Same Software as factory)

I have driven about 20 of the Jeep Grand Cherokees mostly with the ZF-8HP70 but some V6 and personally I have never come across one that had a problem. I certainly don't disagree that some people on here do have some issues but it has not been "every one" as far as I have seen. I am kind of surprised you think that it is purely programming seeing as there are lots of people here who have no problems at all? I drove a 2014 Summit Hemi for 2 weeks and put over 1000 Miles on it with and without towing and never once did it shift in a way that I was not pleased with (I come from driving a Mercedes ML320 Bluetec, so I find downshift drag to be fairly normal from the 7 Speed I had).

Has Chrylser not asked your store to doing any testing or verification at all on this problem... You also mentioned there has not been a single failure / replacement at your store?
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Old 07-24-2013, 06:52 AM
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Re: If your 8spd trans is rough, put your hand up

Will,

The late '10 and early '11 MDXs had a lot, but by no means everybody, complaining about transmission shifting problems. They eventually came up with a firmware update that seemed to be the solution. They applied it to my MDX even though I had made no complaint. I could feel a difference in the shifting, but still no problems.

My guess is that some of the parameters used to meet some objectives are pushing certain limits. With even the slightest differences in manufacturing from unit to unit, some will experience problems. Only time will tell, but I'd bet on software.


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Old 07-24-2013, 07:18 AM
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Bill,

I don't disagree at all, I am sure I have pointed out there is a software update that will happen. I do need to take people at the benefit of the doubt though that some people have more severe issues.

I will take it back to the Buick Enclave story because I drove lots of those as well. Lack of downshifting, delays in shifting... some people even called them dangerous, I can totally remember all of this. I even know what that final software update was and you had to agree to a disclosure that it was going to cause poor fuel mileage and cannot be rolled back.

My issue is that from a diagnostic standpoint I could jump in any Enclave and duplicate the concerns based on the information provided. My old Mercedes would shift hard occasionally and that was just the way it was.... I ran the latest update in it as well ( 4 years old when I got rid of it). I just can't get the 8 speeds in the Cherokees to do anything that people here with the problems describe. I didn't try the new descriptions recently but I will because I am genuinely interested.

My concern is that if I can grab 6 Jeeps and try all of them in various modes, why would I never once experience any of these problems. The ones I drive are all fairly low miles but never have I felt a hard shift (slowing down it shifts into gear a little early I guess but that is exactly the same as my Mercedes and the X5 I drove). A great number of people in the Jeeps were complaining of the shifting problems with less than 1000 miles though, so why can't I find it.

I duplicate problems for a living pretty well and I have sent data directly to manufacturers before (including auto manufacturers) This is why I keep asking people with the problem vehicles to go to a dealer and have them compare with a new one. If I can't duplicate any of this how is an engineer and how can it be just software??

So without upsetting people here, if it is only software, some people must be seriously exaggerating the problems they are having. If it is just software you can't have a bunch of trannys jerking all over the place and some are perfect... that doesn't add up. I prefer to take the side of the people with the problems they have described because if I believe it is only software at fault here then Members are lying about there experiences....

See my conflict?
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  #216  
Old 07-24-2013, 07:46 AM
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I tried to reproduce it again this morning and couldn't get it to happen today - same conditions as yesterday in the back of parking lot at work. Today I noticed it held 2nd gear almost all the time even at very slow speeds - not downshifting into 1st until the Jeep was pretty much stopped (1-3mph). Didn't seem to hold onto 1st much at all on acceleration either. Yesterday when it clunked a few times I'm pretty sure it was bouncing between 1st and 2nd more, holding onto 1st a bit longer (5mph range).

It may be intermittent with some JGCs having it more than others. Agree driving style might even factor into it - software "learning" part? I'm pretty light on gas, stay in Eco mode all the time except if I need little extra punch going up a hill or getting on highway.

I also tested going into and out of sport mode this morning to see if that factored in but no luck. Might be my imagination but a few times after I came out of sport mode and back into D I thought the gearing felt a little peppier slowing down...like in manual trans with engine speed higher than gear. Thought maybe it was still "remembering" something from sport mode that could have factored into low speed clunk but couldn't get it to happen this morning.

Side note - I used to hang around on the Pontiac Solstice forum for long time (I have an '06 Solstice). They had a low speed cluck in their manual trans that was a huge issue on their forum for years. Some people losing their mind over it while others were like no big deal. Not sure we ever found the root cause but suspected was just little slack in drive line that was triggered more by certain shifting styles.
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