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View Poll Results: How pleased are you with the way your 8 Speed Transmission Works? (By Engine)
V6 - I am very happy with the way it shifts, one of the best I have owned. 26 15.76%
V6 - Mostly pleased, I turn off ECO or run in Sport to get best results. 38 23.03%
V6 - Not very happy, I don't find any of the driving modes good. 14 8.48%
V6 - Terrible, Shifts harsh a lot, I get jerks and lurches. 19 11.52%
V8 - I am very happy with the way it shifts, one of the best I have owned. 47 28.48%
V8 - Mostly pleased, I turn off ECO or run in Sport to get best results. 15 9.09%
V8 - Not very happy, I don't find any of the driving modes good. 3 1.82%
V8 - Terrible, Shifts harsh a lot, I get jerks and lurches. 3 1.82%
Voters: 165. You may not vote on this poll

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  #49  
Old 07-25-2013, 06:56 PM
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Quote:
Originally Posted by Celestinemusic View Post
Hi Willx:
I am not sure how to reply to the survey. I have the V6 and like the 8 speed transmission but I don't think all of the shift maps are properly optimized. I waited a couple years knowing the 8 speed was coming before buying my GC. I am inclined to select the 2nd option in your poll, but I don't bother to turn ECO off as both of the other modes delay the higher gear up shifts too long or should I say until too fast a speed. One confusing thing is shift points for the lower gears seem better when I first start from cold, maybe a different shift map until warmup. After warmup and with some stop and go, lower gear shifts happen to early giving a slightly harsher shift and the feeling of sluggishness that wouldn't be there if the upshift was delayed a little longer. If I press harder on the accelerator, there is better delay and a smoother shift, but doing this may be more acceleration than I want for the driving condition/traffic.
I also find that downshifts to lower gears happen too quickly when I want to slow down gradually. Sometimes they are pretty abrupt like downshifting a manual transmission. In fact, it is probably abrupt enough to be an issue if there was poor traction. A faster braking seems very smooth. I really don't think there is anything mechanically wrong with the transmission. No harsh clunks, noises,etc. I love it on the highway and essentially all situations other than gradual slowdowns below 25 mph, and warmed up starts with relatively light acceleration. I plan to bring this up when I go to the dealer. I have about 2700 miles on my Summit and it would be the 1st visit. I need to go for radio/uconnect upgrades as mine was built late March. I am stating things the best way I know how and I am not trying to be negative, just trying to convey the info as best as I can in hopes that there is just some software tweaks that would make me really love this transmission. Overall, I am very happy with my Summit. So many things about it are outstanding! Sorry that the post turned out to be so long.
No problem at all excellent description. The behaviours you speak of and specific shift pattern conditions are very much the type of thing that would be addressed in an update. I am not on a computer at the moment so I am assuming you have the V6? I do believe that many if not all of your concerns may be addressed in a future update (IMHO)

Your experiences if happening to other people may be much more negative. I think you have a positive position on the entire situation, many people in your shoes would just mark it down at terrible or not pleased, so this is what makes your comments interesting.
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  #50  
Old 07-25-2013, 07:04 PM
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Has anyone driven an Audi or BMW 8spd ?. Just curious if they act the same way.
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  #51  
Old 07-25-2013, 07:09 PM
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Originally Posted by nickm View Post
Has anyone driven an Audi or BMW 8spd ?. Just curious if they act the same way.
I have driven the x5 and I can say it behaves very similar to the Hemi. My ML also was a aggressive down shifter with its 7. I never found any to be an issues but I also believe the V6 transmission to be different in many cases but not all.
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Old 07-25-2013, 07:16 PM
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Quote:
Originally Posted by Willx View Post

I have driven the x5 and I can say it behaves very similar to the Hemi. My ML also was a aggressive down shifter with its 7. I never found any to be an issues but I also believe the V6 transmission to be different in many cases but not all.
Any clunking when coming to a stop or slowly upshifting into 2nd in those other vehicles?
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Old 07-25-2013, 07:40 PM
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Quote:
Originally Posted by nickm View Post

Any clunking when coming to a stop or slowly upshifting into 2nd in those other vehicles?
No nothing like that... However I've driven many of the 2014 Jeep Grand Cherokees and I haven't had those do it to me either. I have literally lost count of how many I've been in and I've done towing tests and a whole bunch of other tests on them and I've never once had a bad experience with one of the transmissions. It is one of the main reasons that I did this poll in the first place.

And to save the question I don't owe anything to Chrysler nor do they pay me for anything so my experiences are my own. I work with dealers of all makes and models.
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  #54  
Old 07-25-2013, 08:15 PM
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Thanks I wanted to test drive the x5 but I think they are at least 15 grand overpriced. Or is that worth having a smooth trans.
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Old 07-25-2013, 08:26 PM
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Originally Posted by nickm View Post
Thanks I wanted to test drive the x5 but I think they are at least 15 grand overpriced. Or is that worth having a smooth trans.
Nope. Same transmission in the V8 or diesel Grand.... exactly the same trans, so why pay more. More like $20,000 over priced when you get full air ride etc.

I am actually going to look that up later!
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  #56  
Old 07-26-2013, 04:41 AM
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Re: 2014 JGC Transmission Survey

Almost 6000 miles here. I run in ECO mode (99% of the time) or SPORT mode (1%). I have not driven in Normal Ride Height / Non-ECO mode yet. Even my beginner off-road experience was done in ECO.
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  #57  
Old 07-26-2013, 10:04 AM
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Re: 2014 JGC Transmission Survey

Quote:
Originally Posted by Celestinemusic View Post
Hi Willx:
I am not sure how to reply to the survey. I have the V6 and like the 8 speed transmission but I don't think all of the shift maps are properly optimized. I waited a couple years knowing the 8 speed was coming before buying my GC. I am inclined to select the 2nd option in your poll, but I don't bother to turn ECO off as both of the other modes delay the higher gear up shifts too long or should I say until too fast a speed. One confusing thing is shift points for the lower gears seem better when I first start from cold, maybe a different shift map until warmup. After warmup and with some stop and go, lower gear shifts happen to early giving a slightly harsher shift and the feeling of sluggishness that wouldn't be there if the upshift was delayed a little longer. If I press harder on the accelerator, there is better delay and a smoother shift, but doing this may be more acceleration than I want for the driving condition/traffic.
I also find that downshifts to lower gears happen too quickly when I want to slow down gradually. Sometimes they are pretty abrupt like downshifting a manual transmission. In fact, it is probably abrupt enough to be an issue if there was poor traction. A faster braking seems very smooth. I really don't think there is anything mechanically wrong with the transmission. No harsh clunks, noises,etc. I love it on the highway and essentially all situations other than gradual slowdowns below 25 mph, and warmed up starts with relatively light acceleration. I plan to bring this up when I go to the dealer. I have about 2700 miles on my Summit and it would be the 1st visit. I need to go for radio/uconnect upgrades as mine was built late March. I am stating things the best way I know how and I am not trying to be negative, just trying to convey the info as best as I can in hopes that there is just some software tweaks that would make me really love this transmission. Overall, I am very happy with my Summit. So many things about it are outstanding! Sorry that the post turned out to be so long.
I have to agree with EVERYTHING said here. Could not have put it into better detail. The manual transmission reference is exactly how I would describe it. About every gear after 3rd is perfect..but has issues before that. I do have a clunk, but it does not seem to be trans related.
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  #58  
Old 07-26-2013, 11:30 AM
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Re: 2014 JGC Transmission Survey

Quote:
Originally Posted by nickm View Post
Has anyone driven an Audi or BMW 8spd ?. Just curious if they act the same way.
I also own a 3 series with 8 speed. the downshift from 2 to 1 is also little rough on that too but not as much as GC. Upshifts are very very smooth it is almost impossible to understand it shifted unless you are looking at the tachometer. Even in stop and go traffic it is very comfortable.
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Old 07-26-2013, 11:36 AM
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Re: 2014 JGC Transmission Survey

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Originally Posted by Willx View Post
The entire Poll is around what JP had said there... It is a sampling of an overly negative group, so comparison between the two Transmissions is the only truely valid data. Again JP is correct, this is not scientific at all, but it does show that the problem does not suddenly materialize with time for everyone. I know many of the people who have said that they are very happy with their V6 have lots of miles on them.

This is not even to mention that I am not personally driving and comparing the performance of each transmission myself, it is all personal opinion and perception but that is what I wanted to see.

I am very aware of six sigma, I am not just an automotive guy
You are starting to sound like a PR person or a dealer.

The poll is not scientific, but it is the best data available and disregarding owners point of view is dumb. Yes a scientific poll may show a smaller number of tranny issues like 10 to 20% instead of 1/3 as I stated prevoiusly, but all those numbers are very poor and would not convince some one to risk $40k on a V6

The comment " I know many of the people who have said that they are very happy with their V6 have lots of miles on them." is worthless anecdotal information. You could make that statement if 50% of people had tranny problems.

The comment "This is not even to mention that I am not personally driving and comparing the performance of each transmission myself, it is all personal opinion and perception but that is what I wanted to see." Is very surprising. Buyers opinions are what matters not your opinion. I forget Demmings exact wording on the definition of quality, but he essentially said it was delivering a product that MEETS the expectations of the CONSUMER. You very mistakenly over inflate your "superior" knowledge. It is the opinion of the buyers and drivers that matters not yours.

You should read more Demming and focus on six sigma so everybody loves thir tranny, not make statements about how things are not so bad as owners and drivers do not agree.
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Old 07-26-2013, 01:37 PM
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Re: 2014 JGC Transmission Survey

My wife drives it more than I do so I asked her about it, she was surprised to hear some people didn't like the tranny. Weboth agree the tranny is great, and even while we were waiting on the shifts we hardly notice it. The Jeep now has 4000 miles on it
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