2011 auto-stick problem/question - JeepForum.com
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post #1 of 21 Old 03-01-2014, 03:13 AM Thread Starter
weebs74
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2011 auto-stick problem/question

Is there anyway to change the reaction speed with the auto stick mode on the 5sp auto on my 2011 JGC? I have seen TSB's regarding how the transmission shifts...but I think they all apply to the regular function of the automatic. My problem is this: When shifting in "manual" mode there is a really slow reaction time between when I shift to the next gear and when it actually happens. The worst is going from 3-4 where there is a weird fluctuation of the rpms when shifted to 4, but the tach will go to near redline before it will shift, unless I'm very light on the gas. Sometimes I shift a second time to 5 as I think maybe I missed the shift and then it will skip 4 all together and clunk into 5. I really hate this.

Will having the computer/transmission reflashed do anything? How about an aftermarket programmer...ie the Trinity? Any thoughts or similar issues?


2011 JGC Limited, OR II, Tow IV, 275/65R18's Goodyear Silent Armor.
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post #2 of 21 Old 03-03-2014, 06:10 PM
doz
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Aftermarket programmer can do the trick but youll probably need someone to make a custom profile for it. You can change shift points with the tuners but that wont fix your problem. You will probably need a bit more transmission line pressure and also need the timing changed.
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post #3 of 21 Old 03-05-2014, 08:49 AM Thread Starter
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So you think that a tuner, like the Diablo that many are talking about, would change the shift reaction times with shifting "manually"...or are you saying that the shift points would only change for the shifts in regular auto mode?

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post #4 of 21 Old 03-05-2014, 11:01 AM
canistel
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Originally Posted by weebs74 View Post
My problem is this: When shifting in "manual" mode there is a really slow reaction time between when I shift to the next gear and when it actually happens.
I could be wrong, but my understanding of the manual mode is not that you are shifting gears yourself (like a true manual), but that you are "allowing" the automatic to shift up when it thinks it needs too. It's more like a request to the tranny: Hey tranny, you may shift into third now any time you feel like it. If you keep it in second, then regardless of rpms, speed etc, the tranny will never be allowed to move into third. When you "shift" into third, you basically allow the transmission to upshift out of second but it still decides exactly when to to so.

So that might explain the "slow reaction time", it's not necessarily supposed to shift when you move it up a gear.
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post #5 of 21 Old 03-05-2014, 02:30 PM
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This manual shift is ridiculous
Why not make it like every one else where it is more like a shifter

Why do I need a maximum gear limiter which is what this amounts to
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post #6 of 21 Old 03-05-2014, 02:34 PM
NotSoMelloYello
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If you want to drive it like a manual you should have just bought a manual vehicle....
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post #7 of 21 Old 03-05-2014, 03:03 PM
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Quote:
Originally Posted by weebs74
Is there anyway to change the reaction speed with the auto stick mode on the 5sp auto on my 2011 JGC? I have seen TSB's regarding how the transmission shifts...but I think they all apply to the regular function of the automatic. My problem is this: When shifting in "manual" mode there is a really slow reaction time between when I shift to the next gear and when it actually happens. The worst is going from 3-4 where there is a weird fluctuation of the rpms when shifted to 4, but the tach will go to near redline before it will shift, unless I'm very light on the gas. Sometimes I shift a second time to 5 as I think maybe I missed the shift and then it will skip 4 all together and clunk into 5. I really hate this. Will having the computer/transmission reflashed do anything? How about an aftermarket programmer...ie the Trinity? Any thoughts or similar issues?
The inTune DCX helped slightly with throttle response but nothing to rave about. On auto and manual. I had to get a custom tune from Diablo Sport to further adjust he throttle response as the standard settings on the tuner were not enough.

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post #8 of 21 Old 03-05-2014, 03:14 PM
biker2k
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If it were available as a stick I would have bought it that way trust me....
but other than the cayenne I don't believe a manual is offered in any other truck that competes with this one...

That being said I understand that this is an automatic, but why give me a manual shift mode that only acts like it does when it's in drive, other than to limit the maximum gear used...
for that I could basically leave it in drive...

understand that every other "automatic" vehicle that I have driven that offers a manual shift mode, including light trucks allows you to shift like a manual..
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post #9 of 21 Old 03-05-2014, 03:22 PM
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Quote:
Originally Posted by biker2k View Post
This manual shift is ridiculous
Why not make it like every one else where it is more like a shifter

Why do I need a maximum gear limiter which is what this amounts to
I don't understand this post, it's basically how pretty much every automatic works is it not? My car has spots to shift into "D", "3", "2" and "1" as well. The jeep would have the "maximum gear limiter" for the exact same reason every other automatic has, sometimes (pulling up a hill) you want to have high rpms without it shifting up.
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post #10 of 21 Old 03-05-2014, 03:24 PM
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yes you are right but that those vehicles don't have an auto stick...
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post #11 of 21 Old 03-05-2014, 03:24 PM
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Originally Posted by Jackal01 View Post
The inTune DCX helped slightly with throttle response but nothing to rave about. On auto and manual. I had to get a custom tune from Diablo Sport to further adjust he throttle response as the standard settings on the tuner were not enough.

Sent from my underground lair.
Were you ever able to adjust the shift points with this tuner? If I bought that tuner could I use it to stay in second + third longer?
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post #12 of 21 Old 03-05-2014, 03:30 PM
canistel
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Originally Posted by biker2k View Post
yes you are right but that those vehicles don't have an auto stick...
I found this, maybe it's not as I described after all:
http://articles.westcoastchallengers...edes-vehicles/
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post #13 of 21 Old 03-05-2014, 03:38 PM
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Quote:
Originally Posted by canistel View Post
Were you ever able to adjust the shift points with this tuner? If I bought that tuner could I use it to stay in second + third longer?
I asked them last week and there is no option to adjust shift points right now.

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post #14 of 21 Old 03-05-2014, 04:15 PM
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That article describes exactly how an auto stick should work
Which is different from how ours operates
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post #15 of 21 Old 03-05-2014, 07:46 PM
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Quote:
Originally Posted by biker2k View Post
This manual shift is ridiculous
Why not make it like every one else where it is more like a shifter

Why do I need a maximum gear limiter which is what this amounts to
I missed whether you have a V8 or V6. They use different transmissions and operate differently which adds to some confusion around here. The V6 is a Mercedes transmission and works like most Mercedes autos. The V8 is a Chrysler transmission thats been around for 15 years or so, there are numerous discussion about operation and hop up options.

You never know for sure what "gear" the V8 transmission is using because there is little correlation to whats indicated. I think the V6 is more direct.

The transmissions seem slow to respond usually because of torque management. Its a SUV or light truck transmission, a sport car transmission its not.

Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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