06 lj transmission/ecu - JeepForum.com
 
LinkBack Thread Tools
post #1 of 9 Old 08-02-2017, 03:15 PM Thread Starter
casper36092
Registered User
 
Join Date: Feb 2011
Location: wetumpka
Posts: 22
06 lj transmission/ecu

hey I have a pretty new to me 2006 lj. has about 126k on it and just started the hard shift from 1st to second and then clears up until it sits for a while and then starts over. I can unplug my computer and it fixes it for several weeks and then it starts again.

anyways I have searched and only find real old threads from when these jeeps where new. does anybody know the definitive fox for this problem. can I buy a superchips programmer or something to change the shift points or have dealer reflash the ECU. or any other ideas.

thanks
chris

casper36092 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 08-02-2017, 04:17 PM
rickyblaze
Registered User
2006 LJ Wrangler 
 
Join Date: Dec 2016
Posts: 15
Here's a link to the proper way to reset your ECU. Guys have said it helps with the hard shift as well. Couldn't hurt to try.
https://r.tapatalk.com/shareLink?url...0&share_type=t


Resetting the computer

Sent from my XT1254 using Tapatalk
rickyblaze is offline  
post #3 of 9 Old 08-02-2017, 04:31 PM
pistondog
Registered User
2006 TJ Wrangler 
 
Join Date: Jun 2012
Location: central east coast
Posts: 26
Garage
Mine does it sometimes. Codes say it's a trans temp sensor. But from what little I've read so far it's more of a PCM problem. I cleared the codes and no prblems yet. Some other forums have threads going about this. Update with anything you find.
pistondog is offline  
 
post #4 of 9 Old 08-18-2017, 08:32 AM Thread Starter
casper36092
Registered User
 
Join Date: Feb 2011
Location: wetumpka
Posts: 22
anymore help. there has to be a solution to this I know there has to be a solution and all of the 05 06 jeeps aren't riding around with hard shifts and slipping transmisions
casper36092 is offline  
post #5 of 9 Old 08-18-2017, 08:57 AM
Ironhead
Registered User
2003 TJ Wrangler 
 
Join Date: Jan 2011
Location: Westchester
Posts: 4,539
its much more of an 06 thing and not so much of an 05 thing. we got lucky with the gf's and had a buddies shop update the firmware. many have not had the same luck but trying to find a decent ECM replacement is not as easy as it seems.

the simple fix is to let the jeep warm up for a couple minutes before driving


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Ironhead is offline  
post #6 of 9 Old 08-18-2017, 11:08 AM
Deuxlatch
Registered User
 
Join Date: Aug 2017
Location: Cypress
Posts: 19
Garage
I have an '05 LJ and I'm going through it right now. I have been in limp mode with the CEL on for 2 weeks waiting on a PCM from the stealership that cost me $1500. I couldn't find a rebuilt one and I don't have time to send mine off for rebuild. I can clear the light but it comes back on immediately. I am going to keep my original PCM and have it rebuilt as a spare.

2005 LJ
2006 Wide Glide

"If you ain't the lead dog the scenery never changes"
Deuxlatch is offline  
post #7 of 9 Old 08-19-2017, 03:56 AM
LRod
Registered User
2006 TJ Wrangler 
 
Join Date: May 2009
Location: S. Cal
Posts: 265
I opened up my PCM and cleaned some corrosion off some contacts inside it and it ran great ... for a few days. So I replaced the PCM, Im on my third one now and it ran just ok, till I had to smog it, then I got a CEL. I eventually replaced the cam and got no problems after about 1000 miles, but after 2-3 years of screwing around im not too confident in Chrysler products. I'd like to get rid of this P.O.S. but its paid for and I dont need much just to get around town these days.
LRod is offline  
post #8 of 9 Old 08-21-2017, 06:39 AM
Deuxlatch
Registered User
 
Join Date: Aug 2017
Location: Cypress
Posts: 19
Garage
OK I read on another forum about this issue. If you have replaced your OPDA with the crown unit then chances are the cam position sensor that came with it is aftermarket as well and Chrysler products dont like aftermarket sensors. I replaced mine with an OEM sensor and it immediately started throwing codes and shifting hard with extended cranks every morning. So what gives? Well I read on that other forum that if you put a washer between the sensor mount and the OPDA it will increase the distance between the sensor and the rotator causing less interference in the communication between the two, whatever that means. I did that 3 days ago, reset my computer and my CEL hasn't come on yet, no extended cranks and no more limp mode. I'm hoping I didn't pay $1500 for a new PCM when the fix was only a 10 cent washer. I will keep y'all posted on whether or not my issues return.

2005 LJ
2006 Wide Glide

"If you ain't the lead dog the scenery never changes"
Deuxlatch is offline  
post #9 of 9 Old 08-21-2017, 04:04 PM
LRod
Registered User
2006 TJ Wrangler 
 
Join Date: May 2009
Location: S. Cal
Posts: 265
Give it a try! you got nothing to lose?
I'm quite biased and relate every drivetrain issue to the cam gear wear. If the timing is off a little it seems to screw up everything. I had the same hard shifting problems till i changed PCM's then I got CEL and not smog ready O2 sensors? I've got pictures of my cam gear wear, just can't post them.
LRod is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome