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Unread 02-06-2015, 05:59 AM   #1
mistert
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2012 JK Wrangler 
 
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Tranny shift problem

I have a 2012 Rubicon (2-door), 3-6, six speed standard transmission...
Problem: I purchased it at around 15,000 miles and every now and then I'd have a grind when going into forth gear. I just assumed I wasn't getting the clutch in all the way however the problem just got worse and lately it's been jumping out of forth gear. It has this problem only with forth gear.
Took it by the Jeep dealer and left it for a couple of days. They said it was the shifter kit and boot and would order one. Brought it back this week and left it with them all day. They were supposed to call me but never did. At 5pm I called and they said it was ready. I didn't make it a mile down the road and it did the same thing several times, again, only going into forth gear and jumping out of forth.
Anybody have any possible reasons for the problem?

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Unread 02-06-2015, 08:48 AM   #2
JippyJones
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I have had the exact same problem with my 12 JKUR 6-speed that I purchased new. The dealer replaced the shifter boot upon my first complaint. Each complaint since has resulted in "problem can't be reproduced". Unfortunately, it happens often enough to be annoying but the issue is intermittent, not readily revealing itself upon a quick inspection. I have been complaining to the dealer for three years with no resolve.
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Unread 02-06-2015, 09:09 AM   #3
duneslider
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That sounds like bad syncros to me. If that is what it is it will just continue to get worse.

Might be worth going to a real transmission repair place and having them talk to you then you will know exactly what is wrong with it when you try to get jeep to warranty it (if it is in warranty).
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Unread 02-06-2015, 10:36 AM   #4
JeepCACares
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Quote:
Originally Posted by JippyJones View Post
I have had the exact same problem with my 12 JKUR 6-speed that I purchased new. The dealer replaced the shifter boot upon my first complaint. Each complaint since has resulted in "problem can't be reproduced". Unfortunately, it happens often enough to be annoying but the issue is intermittent, not readily revealing itself upon a quick inspection. I have been complaining to the dealer for three years with no resolve.
JippyJones,

I'm sorry to hear about your concern.

Have you noticed the issue becoming more prevalent in the winter months? In some cases the thickness of the shift boot and temperatures can related to similar symptoms. Have you spoken with your Service Manager?

Dave P.
Top Care Specialist
FCA Canada
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Unread 02-06-2015, 11:02 AM   #5
JippyJones
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Dave,

The frequency of occurrences is the same in the summer and winter and regardless of temperature. The dealership has mentioned that the boot tightens up in colder weather. I have gotten in the habit of holding the clutch in longer on shifts to fourth to ensure the transmission is fully engaged and it still pops out and grinds occasionally. There is definitely something wrong with the transmission in my Jeep. It also happens to my wife when she drives and we have different driving patterns.
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Unread 02-06-2015, 11:05 AM   #6
JippyJones
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My service manager at St. Charles CDJ has not been able to reproduce the symptoms. One tech did witness the issue before the boot replacement. The boot replacement did not affect or reduce the frequency of pop outs and grinding. It has gotten worst over the three years I have owned the vehicle.
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Unread 02-06-2015, 12:39 PM   #7
mistert
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Quote:
Originally Posted by JeepCACares View Post
JippyJones,

I'm sorry to hear about your concern.

Have you noticed the issue becoming more prevalent in the winter months? In some cases the thickness of the shift boot and temperatures can related to similar symptoms. Have you spoken with your Service Manager?

Dave P.
Top Care Specialist
FCA Canada
Yes, they were supposed to install a new shift kit and boot this week however, when I crawled under the Jeep right after I got it home I could see no visible signs of ANY new parts...The problem is still there.
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Unread 02-06-2015, 01:00 PM   #8
JeepCACares
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Quote:
Originally Posted by JippyJones View Post
Dave,

The frequency of occurrences is the same in the summer and winter and regardless of temperature. The dealership has mentioned that the boot tightens up in colder weather. I have gotten in the habit of holding the clutch in longer on shifts to fourth to ensure the transmission is fully engaged and it still pops out and grinds occasionally. There is definitely something wrong with the transmission in my Jeep. It also happens to my wife when she drives and we have different driving patterns.
Quote:
Originally Posted by JippyJones View Post
My service manager at St. Charles CDJ has not been able to reproduce the symptoms. One tech did witness the issue before the boot replacement. The boot replacement did not affect or reduce the frequency of pop outs and grinding. It has gotten worst over the three years I have owned the vehicle.
JippyJones,

Keep an eye on your PM inbox.

Dave P.
Top Care Specialist
FCA Canada
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Unread 02-06-2015, 03:11 PM   #9
JeepCares
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Quote:
Originally Posted by mistert View Post
Yes, they were supposed to install a new shift kit and boot this week however, when I crawled under the Jeep right after I got it home I could see no visible signs of ANY new parts...The problem is still there.
Quote:
Originally Posted by JippyJones View Post
I have had the exact same problem with my 12 JKUR 6-speed that I purchased new. The dealer replaced the shifter boot upon my first complaint. Each complaint since has resulted in "problem can't be reproduced". Unfortunately, it happens often enough to be annoying but the issue is intermittent, not readily revealing itself upon a quick inspection. I have been complaining to the dealer for three years with no resolve.
Thanks JeepCACares for forwarding this to me. JippyJones and mistert, I will be handling your concerns. Please check your PM for additional information. As an FYI, JeepCares works with all US customers and JeepCACares handles our Canadian customers. We are here to help, so donít hesitate to ask!
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Unread 02-28-2015, 07:41 AM   #10
mistert
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Tranny Problems update...

I brought the Rubicon back to the dealership (third time), and the owner who happens to be a good friend and that's why I didn't respond to the survey(s) or the folks at Chrysler, anyway he rode with me and sure enough, it ground five times in less than a mile...He set up an appointment and again I dropped it off for service....Service boys could not replicate the problem...The owner had one of the techs ride with me and it ground and popped out of 4th. gear..note: the problem is only in 4th. gear which tells me, it's inside the transmission, not the clutch or linkage or boot...but then again, I'm no tech. The tech confirmed my suspicions and said it was inside the tranny....so, a new counter shaft and components have been ordered and it's scheduled for service this Tues.. I was advised by the service manager that if that did not cure the problem a new transmission would be put in....I will say that the entire crew at the dealership has been very good with my complaint and are doing everything they can to remedy the problem. let's see what happens...
I'll keep the Forum advised on the situation.
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Unread 02-28-2015, 07:52 AM   #11
jwmbishop
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Dune- bad syncros is a good partial diag - but that only covers the noise - not the popping out. When a transm pops out of gear (after fully engaging) its from the gears being allowed to run away from each other - shaft, bearings or faces damaged (from bad syncros).

As a point of humor - we had a four speed muncie in an outlaw stock that we ran in second - had to bungy cord the dang thing into second because every time he lifted to corner it would pop out - ran two seasons that way!!
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Unread 02-28-2015, 10:50 AM   #12
Moezer
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I had a problem like this on my 2014 only had about 700kms at the time but mine was much much worse

First it started to grind in 5th gear then 4th then 3d then 2d and it came to times when i came to go in to 6th or 5th and i couldnt find the gears, sometimes when i came to go from 5th to 6th it use to go in to revirse.

I went with a drive with the tech supervisor and it happend to me he then asked r u oressing the clutch all the way i told him ya i then pulled to the side and he drove it

They ended up chabging the clutch the push besring the pressure plate and the slave sylinder after that it worked fine
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Unread 03-01-2015, 07:44 AM   #13
mistert
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Tranny Problems .

Quote:
Originally Posted by jwmbishop View Post
Dune- bad syncros is a good partial diag - but that only covers the noise - not the popping out. When a transm pops out of gear (after fully engaging) its from the gears being allowed to run away from each other - shaft, bearings or faces damaged (from bad syncros).

As a point of humor - we had a four speed muncie in an outlaw stock that we ran in second - had to bungy cord the dang thing into second because every time he lifted to corner it would pop out - ran two seasons that way!!
The service manager said they were going to install a whole new counter shaft, syncro(s) assembly....I'm definitely not a transmission guy so I don't know how much of the guts that actually means will be replaced, ie: gears bearings, etc.. He did say if that didn't fix it, they would put in a whole new transmission.
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Unread 03-01-2015, 08:02 AM   #14
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Unread 03-22-2015, 08:24 AM   #15
mistert
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Still working on my Rubicon!!!

Like my first thread indicates, I first took my Rubicon to the dealer the first week of February to fix a problem with "grinding" into 4th. gear and "jumping out" of forth. I really don't want to file a complaint (yet), with Chrysler because the owner of the dealership is a very good friend. This is just info for forum members with similar problem(s) to use anyway best for their own interest. OK, maybe a little bit of venting.
Dropped off jeep to have tech drive it to see what's wrong. He "couldn't replicate the problem."
Still had same issues after I picked it up.
Brought it back again and the service mgr. said it was probably a shift kit and boot issue so one was ordered.
The following week I left it and the new kit/boot were installed.
Still the same problem....
Dropped it off again and the dealer went with me...It jumped out of gear once and ground into 4th. three times within a mile. Then the tech rode with me and it ground several times...He said it sounded like a synchronizer and they would have to order a new counter shaft and internals.
Dropped it off the next week to have them installed.
Picked it up the following week ... didn't make it out of the dealership before it started making noises and in about 1/2 mile if ground some more...sooooo
I immediately brought it back to the dealership and advised them of the problem....Service tech said it sounded like a throw-out bearing...
Left it with them again. (I was provided a loaner car).
Got a call from the service manager...said they were going to order another counter shaft and gear assembly.
We're into the seventh week now and the service person calls and tells me it's ready...Got there and it wasn't ready...after the second set of synchronizers and gears and counter shaft it was still making the noises so they would check into getting a complete new transmission.
Later that pm, the service manager called me and told me the factory rep said it was probably a bad tranny case but they would have to get approval for a new transmission.
Let's see what happens this week.
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