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Old 05-30-2012, 11:11 AM   #31
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The guy at the shop added the modifier (Only about an ounce or two) it's a "heavily modified" ATF designed to stop rough shifting and shudders in the the tranny, said he had success with it in the past. The problem is unchanged afterward however, and existed prior to the additive.

If it's just a good idea NOT to have the stuff in there, would you recommend having the transmission flushed, see if it'll fix the overall problem?

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Old 05-30-2012, 11:34 AM   #32
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please someone who posted on this thread awhile ago have any of you had the problem fixed once and for all? This is really driving me crazy and jeep dealers have quote "NO KNOWLEDGE OF THE ISSUE" how can it be that common and no onw know how to fix it!!!!!!!

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Old 05-30-2012, 05:07 PM   #33
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Okay so, anyone still having this issue should immediately do the ECM Flash mentioned in an earlier post in this thread. I did it about 4 hours ago and none of the issues are there, even if the vehicle has been sitting for a bit, the hard shift, the lunge, excessive RPMs, all gone.

Here's what I did: I disconnected both battery cables for two minutes, reconnect the cables (positive first, then negative). Put the key in the ignition and turn it to ON so that all the lights appear on the dash, but DO NOT START your Jeep. Turn your headlights on, then off, then turn your ignition to OFF and pull the key out.

I started it up a few minutes later and drove it around with NO ISSUES. I dont know if the problem will come back, but it rules out anything mechanical, as in a new tranny. Worse comes to worse I'll just replace the PCM if it comes back.
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Old 05-31-2012, 08:58 AM   #34
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Man this looks epidemic as I am having the sames issues. I never know which jeep I am waking up to, the one that shifts perfect or the devil that shudders between the TC lock up and OD. Does it some days and others its perfect. After about an hour of driving I am getting two codes thrown 0218 overheating and 0740 some TC code. Funny thing is I have a giant trans cooler on mine and unless its got an obstruction in it there is no way its getting hot. I drove it yesterday for a little over an hour until the light kicked on pulled into my shop got my temp laser gun out. about 8 inches from the tranny the line coming out of the tranny showed 205 degrees and the one going in showed 168. I am at a loss and having my PCM/TCM reprogrammed at a shop this morning. I hope this helps. I have a hard time believing its mechanical since the dang thing works so good most of the time. I am looking for any other input to help
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Old 06-03-2012, 06:05 PM   #35
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I have one of these problem transmissions also. I have disconnected neg. battery cable and thought for a couple days the problem was fixed - but today it popped up again. My experience is almost exactly as others have stated - when the jeep has been up to operating temp and then shut off for it seems more than 5-10 minutes but not long enough to cool completley the trans shifts really hard 1st to 2nd and then doesn't kick into overdrive for several miles down the road, but after doing this "cycle" the trans works perfectly again through the shifts on that particular trip. These things seem more like what should happen if everything was totally cooled down, so it makes one think it would be some temp sensor/time shutoff/shift schedule error. If someone figures this out please post as I love the Jeep otherwise and don't think a rebuild is needed or it would not shift correctly ever Right? (56,000 mi on mine)
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Old 06-04-2012, 12:52 AM   #36
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i am wondering if this problem is unique to the 2006 year?
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Old 06-04-2012, 09:12 AM   #37
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anyone still experiencing this problem...when you go high in rpms for a late and hard shift...if you give it a decent amount more gas then the severity of the shift will be lessened...the lighter your foot is on the gas...the rougher it is...it still will lunge into gear and not be smooth...but it wont feel like its going to snap in half
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Old 06-04-2012, 10:05 PM   #38
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i will be trying the ECM Flash mentioned earlier in the thread tmrw and comparing it to simply disconnecting the negative cable for a few mins.
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Old 06-04-2012, 11:01 PM   #39
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Mine is a 2005 so I don't think it's a 06 model year problem. I had my PCM/TCM completely reprogrammed last week and after about 40 miles the issues returned. However it did throw a P0740 code which is a torque converter issue. I am taking mine to a chrysler tech tomorrow for further investigation. Silly thing act perfect one day a and possed the next. I love the jeep but sick of this and if I own another it will surely be a manual. This tranny is underbuilt for the use a jeep gets
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Old 07-11-2012, 09:26 AM   #40
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Has anyone found a solution?

My son owns a 2006 Wrangler TJ 6 Cyl auto tranny 38,000 miles with the same problem. Is there a solution?

The dealer has replaced the radiator, cooling lines to the tranny and changed the fluid and filter. It was fine for a couple of days then acted up again, difficulty shifting from 1st to 2nd and then down shifting back to first when coming to a stop.

I can not believe Chrysler unaware of this problem, or maybe they are and choose to ignore it.

Thanks
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Old 07-11-2012, 11:38 AM   #41
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Count me in on this problem with my 06 rubi.lj...108k on her...couple of months ago started the lunge from 1st to 2nd when cold....then returns to normal when about a mile from start....took it to a local tranny shop...replaced solenoids and added a trans cooler on two different occasions....seems to be fine for 1 to 2 weeks, then problem returns again.......frustrated and dont know where to go next...dealer?...already have money thrown at the local tranny shop.....bang head
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Old 07-11-2012, 11:28 PM   #42
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Unhappy 2006 Rubicon tranny slamming

I have just joined the hard shift from 1st to 2nd club. I have a 2006 Rubicon that was bought used at 19000 miles I just hit around 26000 miles. I found it funny that it began after I drove slowly over a six inch diameter log. I applied torque slowly in two wheel drive to get over it. I did this twice, once into the trail and once going out of the trail. After this was when the hard shift started to happen (just coincidence?). I was guessing that the computer was trying to adjust the shift points. I don't know if that is even possible. It also felt like the torque converter had stalled during the hard shift. I did the ECM flash and it went away for awhile but it returned at a much lesser degree of hard shifting. I was told that a new tranny was the only fix. I find it hard to believe that a tranny would fail that soon. A final solution is needed if you have one.
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Old 07-12-2012, 08:26 AM   #43
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If anyone has found the solution to this please share and steer us in the right direction...
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Old 07-12-2012, 09:46 AM   #44
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Check post #33, he has not come back to say his problem returned.
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Old 07-12-2012, 02:17 PM   #45
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Quote:
Originally Posted by AFMAN23110
Okay so, anyone still having this issue should immediately do the ECM Flash mentioned in an earlier post in this thread. I did it about 4 hours ago and none of the issues are there, even if the vehicle has been sitting for a bit, the hard shift, the lunge, excessive RPMs, all gone.

Here's what I did: I disconnected both battery cables for two minutes, reconnect the cables (positive first, then negative). Put the key in the ignition and turn it to ON so that all the lights appear on the dash, but DO NOT START your Jeep. Turn your headlights on, then off, then turn your ignition to OFF and pull the key out.

I started it up a few minutes later and drove it around with NO ISSUES. I dont know if the problem will come back, but it rules out anything mechanical, as in a new tranny. Worse comes to worse I'll just replace the PCM if it comes back.
He also says he is not sure if the problem will return, we do not know if it did return.
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Old 07-12-2012, 02:30 PM   #46
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Just found this. Interesting reading.
42RLE (4-Speed) Symptom & Solution
Seems they found a fix that is working and it is cheap.
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Old 07-12-2012, 06:24 PM   #47
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Originally Posted by Gunner View Post
Just found this. Interesting reading.
42RLE (4-Speed) Symptom & Solution
Seems they found a fix that is working and it is cheap.

Thanks for the info!
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Old 07-18-2012, 02:33 PM   #48
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Okay, got tired of this issue and against my better judgement took it to my local dealer yesterday, he just called and told me the PCM had to be replaced for around 6 bills part and labor. I will report back if this solves this for me a soon as I can evaluate it some.
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Old 07-19-2012, 09:51 AM   #49
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I really should have posted this sooner. But itll be two weeks ago now that I replaced my PCM myself and had no issues whatsoever. Ive driven over 700 miles since then at all ranges of speed and traffic to see if I could get the problem to resurface and it hasnt. The part itself cost 279 bucks and ordered it from a place that remanufactures them, they also applied my vehicles VIN as well as all current software updates. Installation should by rights be a quick and easy thing, though I had to fight with a stripped bolt for 3 hours before having to cut the thing out and replace it.

If anyone is still having these symptoms replace your PCM.
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Old 07-19-2012, 07:52 PM   #50
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Hi to all of you having this problem. I posted my transmission problems and solution earlier in this thread (9/11).
The dealership replaced the PCM module in my 06 Rubicon LJ. It has been about 10 months with no problems so far. Fortunately my repair was covered by a Jeep warranty.

Good Luck
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Old 07-21-2012, 11:06 AM   #51
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The transmission was replaced on Thursday, luckily for him it was covered by the extended warranty he purchased when he bought the Wrangler. This was the second time it went in for the transmission in less than a month, the tech decided it needed a new tranny. I think from every thing I have read it is the PCM ( though I am by no means an expert).

Thank you for all of your replies.
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Old 07-21-2012, 08:23 PM   #52
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Quote:
Originally Posted by T_MacP
Hi to all of you having this problem. I posted my transmission problems and solution earlier in this thread (9/11).
The dealership replaced the PCM module in my 06 Rubicon LJ. It has been about 10 months with no problems so far. Fortunately my repair was covered by a Jeep warranty.

Good Luck
T_MacP quick question was your bad PCM throwing any codes?

Thanks
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Old 07-22-2012, 03:57 PM   #53
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Originally Posted by AFMAN23110 View Post
Here's what I did: I disconnected both battery cables for two minutes, reconnect the cables (positive first, then negative). Put the key in the ignition and turn it to ON so that all the lights appear on the dash, but DO NOT START your Jeep. Turn your headlights on, then off, then turn your ignition to OFF and pull the key out.

I started it up a few minutes later and drove it around with NO ISSUES. I dont know if the problem will come back, but it rules out anything mechanical, as in a new tranny. Worse comes to worse I'll just replace the PCM if it comes back.
I've had the same issue as everybody else (mine's a 2006 X, 4.0 w/ 56K on it)... Tried the unhooked battery 'trick' yesterday and it worked. Jeep has gone back to shifting normally.

How long it will last is the question....
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Old 07-22-2012, 07:52 PM   #54
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Hey scwalls, mine behaved for about two weeks the couple times my tranny was attempted to be repaired...always came back ...just got it back from Jeep dealer friday after replacing pcm....took it out on a trail ride a hour from here and she is behaving wonderfully now...I believe it is solved but am hesitant to trust that it is solved ..I will keep posting on this thread if this solved it permanently...
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Old 08-07-2012, 10:22 AM   #55
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Quote:
Originally Posted by 06wranglerownersdad
The transmission was replaced on Thursday, luckily for him it was covered by the extended warranty he purchased when he bought the Wrangler. This was the second time it went in for the transmission in less than a month, the tech decided it needed a new tranny. I think from every thing I have read it is the PCM ( though I am by no means an expert).

Thank you for all of your replies.
Well the "new transmission" started acting like the old one shortly after it was installed, Matt brought it back to the dealer AGAIN. They finally decided to run some tests on the PCM, in fact the dealership was in contact with Chrysler-Jeep about the problem, they had the dealership run some other tests on the PCM. They found problems with the PCM and it has been replaced. The wrangler has been running perfectly now for a couple of weeks (knock on wood).

Just thought I would give a quick update.
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Old 08-07-2012, 01:24 PM   #56
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I posted that the dealer repaced my pcm a couple of weeks back and so far it is behaving beautifully....
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Old 08-07-2012, 02:52 PM   #57
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Originally Posted by fishband
I posted that the dealer repaced my pcm a couple of weeks back and so far it is behaving beautifully....
Oh I know, my point being our dealer and the warranty company could not see beyond a TRANSMISSION problem until the Wrangler went back a third time.
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Old 08-07-2012, 03:02 PM   #58
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Oh I know, my point being our dealer and the warranty company could not see beyond a TRANSMISSION problem until the Wrangler went back a third time.
On the bright side you got a new tranny out of it so you should be good to go for a long time.
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Old 08-08-2012, 10:58 AM   #59
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On the bright side you got a new tranny out of it so you should be good to go for a long time.
So true!
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Old 08-21-2012, 12:19 PM   #60
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HELP Canadian Jeep with the same problem

Quote:
Originally Posted by 06wranglerownersdad View Post
Well the "new transmission" started acting like the old one shortly after it was installed, Matt brought it back to the dealer AGAIN. They finally decided to run some tests on the PCM, in fact the dealership was in contact with Chrysler-Jeep about the problem, they had the dealership run some other tests on the PCM. They found problems with the PCM and it has been replaced. The wrangler has been running perfectly now for a couple of weeks (knock on wood).

Just thought I would give a quick update.
Hello, this is addressed to 06wranglerownersdad who I am hoping is still checking out the posts/threads on this site. I'm thinking he might be able to help me out.

This is coming from another victim residing in your neighbor to the north. Yes, it appears this issue has migrated to Canada. I've got a 2006 Rubicon w/automatic tranny with only 63,000 kms/37,800 miles, that recently started up with these same symptoms of hard shifting 1st to 2nd gear (revving up 2000-2200 rpm in 1st gear then slapping/bumping hard into 2nd). Only does this pattern 2-3 times after first start of the day and after any re-start after sitting for 10 minutes or so. After the 2-3 times bumping from 1st to 2nd, it drives/shifts fine. Searched around the internet and found this forum. Have read everybody's input and have learned a lot. Obviously I am leaning heavily towards the PCM being the prime suspect. I attended my local Jeep dealership & provided the service advisor (who also happens to be the Asssitant Service Manager) with a printed copy of the posts/threads and let them attack the problem. It has not gone well so far. They checked for codes first and found a faulty temp. sensor (located in the valve body of the transmission) that had to be replaced. They changed that out and serviced the tranny (fluid/filter) at the same time as it only made sense to do so with the tranny opened up. B4 the service, the fluid was clean/the level was good. The service only confirmed this. This repair costs me several hundred dollars. The Rubicon ran great, with no shifting issues, for a total of 4 days. Day 5 it all came back, the exact same symptoms. Called service advisor and complained. Went back in for visit number 2. Codes were checked and none found. Problem is stumping them. They don't have answers. Disussed situation to death, including the information contained in the forum on the PCM fix, but they are reluctant to go that route just yet. The only avenue the service advisor could come up with was to place a call to Chrysler's Engineering Dept. (in Canada I presume)and see what they had to say about the problem. Contacted the service advisor to find out the results of his enquiries with Engineering. They told him they don't have a bunch of similar complaints/problems reported for this or see a pattern developing. Service advisor told them specifically about this forum and the discussions of a number of Jeep owners that were all having the same/similar problems/issues. They didn't seem to be all that concerned about the information in the forum. They told the service advisor they didn't think it was the PCM and suggested looking harder at the transmission itself, i.e. check into the shift values while driving/shifting. Bottom line - the service advisor says based on the input from Engineering, they are reluctant to change out the PCM as they don't think it will fix problem. So apparently the next course of action is to hook up a computer up to the Jeep somewhere and check the shift values while driving. They are shifting focus to the tranny. I had a long drawn out conversation with the service advisor and we covered everything, and my fear is that we are going down the path that others in this forum have gone through. It's a waste of everbody's time, my money and a complete exercise in frustration. I thought I came in prepared by bringing in the forum information to the service department to prevent having to go through all this. Let's face it, they don't know what the problem is and they just try through the process of elimination to discover what it is. This is a sad way to service vehicles. The PCM is definitely on their radar but they don't want to go there just yet. So that is my story.. and it sucks. I can sympothize with everybody who's posted the same problem/issue on this site.

Which brings me to my request for help from 06wranglerownersdad. The service advisor asked me if I could get ANY INFORMATION, from one of the owners, that have actually had a successful (PCM) repair, i.e. information on which dealership (location & phone no./email) completed their repair, what service advisor (name & phone/email), what tranny/electrical technitions (name), the service work order no., anything that my service advisor could use to refer to/make contact with parties in a successful, completed (PCM) repair of this same issue where the results have been long lasting and have ended up being the ultimate fix. He's kinda going in the right direction, but it's a strange way to do it. He can then contact that location and get the goods on why they went with replacing the PCM and confirm that is the final solution. I'm fresh out of ideas so thought it was worth a try. 06wranglerownersdad.. can you help me out. Contact me directly at email rccoles2@telus.net

Thanx .. from okanaganwrangler

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