2014 EcoDiesel Overland Transmission Issue - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > 2014+ Jeep Grand Cherokee Ecodiesel 3.0

Reply
 
Thread Tools Display Modes
 
  #1  
Old 09-09-2014, 02:22 PM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Mar 2014
Location: Boston, MA
Posts: 34
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 1237
isopurephoto is on a distinguished road
2014 EcoDiesel Overland Transmission Issue

So I have roughly 7,500 miles on my 2014 Jeep Grand Cherokee Overland EcoDiesel that I bought in March. I'm hoping someone can help me. I noticed about a month ago after getting on the highway at about 51 mph that i was getting a shudder (the feeling similar to that of going over those rumble trips on the side of the highway). If i increased speed or decreased speed it would go away. I had a very difficult time replicating it. The RPM's were between 1.5 and 2 and the car definitely wasn't under load. No codes were kicked. If i started to feel it happen and I kept the gas pedal there it would just continue to shudder/vibrate. A week or so later (i don't do much highway driving) i got back on the highway and it did it again at 69mph while in cruise control. Exact same thing. Has happened a few times since then all at 69/70 mph, never under load. Has never kicked a code and the dealer can't replicate it. I'm very worried because a very similar thing happened to my 2004 jeep grand cherokee overland and it never kicked a code until 2nd and 4th gear went.

The dealer insists these 8 speed transmissions have seniors everywhere and very sophisticated (i laughed because i was told that on my 04 when I had the problem and it didn't kick a code). I've also noticed since i bought the car the transmission shifts very rough between gears. Anyone else have similar issues? ideas?

Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 09-09-2014, 02:26 PM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Aug 2010
Location: OH
Posts: 185
Thanks: 2
Thanked 2 Times in 2 Posts
Rep Power: 2694
SilverWK07 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

There is a recent TSB posted for the 3.0L shift quality. Your dealer should be able to perform it.

2014 CRD + 8-speed: MAJOR shift enhancements/improvements 08/27/14
Reply With Quote
  #3  
Old 09-09-2014, 03:16 PM
Member
 
Join Date: Jun 2014
Posts: 248
Thanks: 6
Thanked 29 Times in 16 Posts
Rep Power: 1357
2009RavenR1 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

If the TSB doesn't fix it (it didn't fix mine) have Jeep buy it back
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 09-09-2014, 10:13 PM
ExcursionDiesel's Avatar
Premium Member
My Jeep: 2014 3.0L WK2
 
Join Date: Apr 2013
Location: W. TN.
Posts: 1,849
Thanks: 16
Thanked 287 Times in 197 Posts
Rep Power: 4226
ExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond reputeExcursionDiesel has a reputation beyond repute
Re: 2014 EcoDiesel Overland Transmission Issue

These transmission use a servo based valve body. The servo valves can oscillate causing shudder. ECU tuning can correct this within limits but some valve body units are out of spec and can't be controlled properly. I would request a valvebody swap before giving up on the vehicle. Other manufacturers have had similar issues with this type of technology.

The other possibility is the Torque converter which, during lockup, creates torsional vibrations that are supposed to be dampened by a sophisticated LUC torsional vibration spring/damper arrangement. This is a documented issue with the 8HP70 used in BMWs.
__________________
----------------------
The founder of JeepGarage.org, Scottina06, has a son Max who is in need of corrective surgery from an infection at birth that left one leg 4 inches short. We need to support our Jeep brothers. His family has started a fund on giveforward.com. If you have ever been helped by someone else, now is a good time to pay it forward. Here is a link to that page. God bless you! http://gfwd.at/1rz33PW
Reply With Quote
  #5  
Old 09-09-2014, 11:48 PM
Member
 
Join Date: Jun 2014
Posts: 248
Thanks: 6
Thanked 29 Times in 16 Posts
Rep Power: 1357
2009RavenR1 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

Quote:
Originally Posted by ExcursionDiesel View Post
These transmission use a servo based valve body. The servo valves can oscillate causing shudder. ECU tuning can correct this within limits but some valve body units are out of spec and can't be controlled properly. I would request a valvebody swap before giving up on the vehicle. Other manufacturers have had similar issues with this type of technology.

The other possibility is the Torque converter which, during lockup, creates torsional vibrations that are supposed to be dampened by a sophisticated LUC torsional vibration spring/damper arrangement. This is a documented issue with the 8HP70 used in BMWs.
With how terrible Jeep as been dealing with me and my truck... I don't want it anymore. Left a bad taste in my mouth that will keep me away from Jeep/Chrysler for life.
Reply With Quote
  #6  
Old 09-16-2014, 09:40 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Mar 2014
Location: Boston, MA
Posts: 34
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 1237
isopurephoto is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

I would love for Jeep to buy it back. This past thursday I was driving on city streets and my check engine light came on yet again. I went to the dealer the next day and it turned out to be the jeep needed to go into re-gen mode. They tried to force it into re-gen mode but it wouldn't go. I was told I baby the jeep to much and need to "push it". This car "wants to be driven aggressively". I'm concerned now that i'm not getting the typical alert (that in the 6 months that I have owned this car has only happened once) to go onto the highway at highway speeds for 20 min. What happens if I'm away and i get a check engine alert because the car needs to go into re-gen mode and then the car goes into "limp mode"?

I agree that it is most likely the torque converter that is causing the shudder that I am getting at highway speeds. My concern is that I can't get it to happen all the time, and once it occurs once or twice it doesn't happen again for a few days.

My dealer finally called yesterday to have me bring it in for a couple days so they can figure out what is going on with it and giving me a loaner. I would LOVE to give this car back. I can't get over what a horrible experience I have had buying a brand new jeep. This is my second jeep grand cherokee overland (my first being a '04) and my third jeep goal (my first being a '99 jeep cherokee sport)
Reply With Quote
  #7  
Old 09-16-2014, 09:43 AM
Member
 
Join Date: Jun 2014
Posts: 248
Thanks: 6
Thanked 29 Times in 16 Posts
Rep Power: 1357
2009RavenR1 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

Quote:
Originally Posted by isopurephoto View Post
I would love for Jeep to buy it back. This past thursday I was driving on city streets and my check engine light came on yet again. I went to the dealer the next day and it turned out to be the jeep needed to go into re-gen mode. They tried to force it into re-gen mode but it wouldn't go. I was told I baby the jeep to much and need to "push it". This car "wants to be driven aggressively". I'm concerned now that i'm not getting the typical alert (that in the 6 months that I have owned this car has only happened once) to go onto the highway at highway speeds for 20 min. What happens if I'm away and i get a check engine alert because the car needs to go into re-gen mode and then the car goes into "limp mode"?

I agree that it is most likely the torque converter that is causing the shudder that I am getting at highway speeds. My concern is that I can't get it to happen all the time, and once it occurs once or twice it doesn't happen again for a few days.

My dealer finally called yesterday to have me bring it in for a couple days so they can figure out what is going on with it and giving me a loaner. I would LOVE to give this car back. I can't get over what a horrible experience I have had buying a brand new jeep. This is my second jeep grand cherokee overland (my first being a '04) and my third jeep goal (my first being a '99 jeep cherokee sport)
It's not only the TC that's causing shudder. I am not releasing the fix online until Jeep figures out what they are doing with mine. I don't want it fixed at this point and I am not doing their job for them.

I'll just say I was data logging when it happened and found some interesting info.
Reply With Quote
  #8  
Old 09-16-2014, 09:46 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Mar 2014
Location: Boston, MA
Posts: 34
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 1237
isopurephoto is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

what do you mean release the fix online?
when you say its not only the torque converter, what else is cause your shudder?
Reply With Quote
  #9  
Old 09-16-2014, 10:01 AM
Member
 
Join Date: Jun 2014
Posts: 248
Thanks: 6
Thanked 29 Times in 16 Posts
Rep Power: 1357
2009RavenR1 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

Quote:
Originally Posted by isopurephoto View Post
what do you mean release the fix online?
when you say its not only the torque converter, what else is cause your shudder?
Once my jeep is taking care of I'll release I'll the info. Jeep reads these forums.
Reply With Quote
  #10  
Old 09-16-2014, 10:08 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Mar 2014
Location: Boston, MA
Posts: 34
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 1237
isopurephoto is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

Well I have made it known to my dealer that I don't want the car anymore but they won't buy it back. All they will do is a trade in.

Sadly the Massachusetts Lemon law doesn't apply because they can't even diagnose the problem because every time I bring it in the tech can't find anything wrong. For the lemon law to apply I would need to have the exact same problem fixed three times and then I would need to send a certified letter to jeep notifying them of my intentions and all this needs to happen within a year a buying the car or 15,000 miles.

I've also made it know that I don't trust it.
Reply With Quote
  #11  
Old 09-16-2014, 10:16 AM
Member
 
Join Date: Jun 2014
Posts: 248
Thanks: 6
Thanked 29 Times in 16 Posts
Rep Power: 1357
2009RavenR1 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

It's a software problem
Reply With Quote
  #12  
Old 09-16-2014, 10:19 AM
Member
 
Join Date: Jun 2014
Posts: 248
Thanks: 6
Thanked 29 Times in 16 Posts
Rep Power: 1357
2009RavenR1 is on a distinguished road
Re: 2014 EcoDiesel Overland Transmission Issue

Don't let Jeep bully you. The problem has been diagnosed and is well documented. There is a reason there is so many tcm calibration updates
Reply With Quote
Reply

Tags
2014, overland

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Major EcoDiesel Injector Pump Issue robert j. yates 2014+ Jeep Grand Cherokee Ecodiesel 3.0 32 03-27-2016 02:03 PM
Damn it...Now My 2014 Overland Has A Transmission Issue! GCLimited Trouble Shooting/Problems/Service 32 11-07-2014 06:29 PM
Baby :: 2014 Jeep Grand Cherokee Overland EcoDiesel Crkwolf Member Garage Discussions 0 02-02-2014 06:35 PM
So I'm in Europe on vacation and I test drove the 2014 Ecodiesel Overland Vanguard Grand Cherokee - WK2 - 16 09-16-2013 09:11 PM

» Premium Vendor Showcase
Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:23 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.