3rd gear slip (6-spd) - JeepForum.com
 
LinkBack Thread Tools
post #1 of 11 Old 11-30-2010, 09:30 AM Thread Starter
nufga
Registered User
 
nufga's Avatar
2010 JK Wrangler 
 
Join Date: Oct 2010
Location: Alexandria
Posts: 216
3rd gear slip (6-spd)

I don't know if slip is the appropriate word, so bear with me. When shifting into 3rd gear only, there seems to be a 1 second delay before the transmission catches and the acceleration begins/RPMs increase. I've seen a few threads discussing a "delay," but all seem to refer to the auto trans.

My Jeep is a 2010 Sahara, standard, with only about 2,200 miles on it. I'm taking it into the dealer on Monday, but wanted to see if anybody else had similar problems/knows the cause.

I have a 2.5" RC Series II BB, RR XHD stubby bumper, and putting on 15" Cragar Soft 8s (4" BS, so I will have to grind the caliper a little) with 35x12.5R15 MTRs. I don't believe any of these modifications should affect anything related to the problem, but I'm still afraid the dealership my reference them.

Any help would be appreciated, it's so frustrating when you have to take in a brand new car after only a couple months.

nufga is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 11-30-2010, 10:06 AM
jstrubberg
Registered User
2009 JK Wrangler 
 
Join Date: Jul 2010
Location: Missouri
Posts: 2,123
There's another thread here about a JK losing power...the description of the problem is almost identical.

Almost sounds like both of you are having throwout bearing issues that are making the clutch hang a bit before it engages.

Definitely a dealer issue.


Here's the other thread.

https://www.jeepforum.com/forum/f96/2...ssues-1131606/
jstrubberg is offline  
post #3 of 11 Old 11-30-2010, 10:31 AM
Imped
Web Wheeler
 
Imped's Avatar
2004 TJ Wrangler 
 
Join Date: Feb 2008
Location: Indianapolis
Posts: 20,536
I highly doubt it's the TO bearing if it's just happening in 3rd gear, especially if you're not complaining about a strange noise coming from the bellhousing. Try really getting on it and revving a bit higher than you normally would. Is the delay still there? 3rd to 4th is the largest jump in ratios in the NSG370 so that's all you're feeling IMO. It has nothing to do with the transmission itself. It's a combination of the e-throttle and being taken out of the powerband. BTW, the dealer won't be able to do a thing for you. Most guys there are plug and oil changers. Anything more is over their head.

OlllllllO

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

IndyORV
Imped is offline  
 
post #4 of 11 Old 11-30-2010, 01:13 PM Thread Starter
nufga
Registered User
 
nufga's Avatar
2010 JK Wrangler 
 
Join Date: Oct 2010
Location: Alexandria
Posts: 216
Thanks for the info, both of you. I don't know how that other thread slipped by, it does seem similar, I guess I wasn't using the same keywords.

I have tried revving at higher RPMs and it is less noticeable. At the same time, the issue only recently started happening. I don't know if this issue is something that would be more apparent after the clutch has broken-in a little, but that should have happened back before the 500-mile mark.

My issue is easily replicated, I've had a friend drive the Jeep and he agrees, so hopefully I can get some insight from the the dealer that'll help those having similar problems.

Thanks again for all the help.
nufga is offline  
post #5 of 11 Old 11-30-2010, 07:15 PM
182329
Guest
2009 JK Wrangler 
 
Join Date: Oct 2008
Location: long island, ny
Posts: 344
Sounds like your problem is typical of many JK owners, particularly those of us with the 6-speed. Jeep programmed a "lag" in the throttle response, which causes this dead spot in the throttle curve. It is more pronounced for me if I shift below 2000 rpm's and it was worse once I put my 35's on due to the extra weight.

There really isn't much you can do about it, but who knows, maybe if Jeep has enough people complain, then they'll flash the ECU and fix it once and for all. Then again, if Jeep listened to its customers, we'd have a diesel by now and a bunch of other things that would make the vehicle work even better.

Some guys use the Flashpaq and get a better response. Others use the Sprint Booster to help this issue. Search around for suggestions/ideas.

Good luck.
182329 is offline  
post #6 of 11 Old 11-30-2010, 07:54 PM
rattlewagon
Registered User
2010 JK Wrangler 
 
Join Date: Oct 2009
Location: SWPA
Posts: 152
Yea, the lag sucks. the flashpaq doesn't really help that much in this case. there are a few complaints on their site about it but they reported that that's the way it has been programed by Chrysler and there isn't a whole lot they can do... here: https://www.superchips.com/forum/vie...hp?f=18&t=8799

I gave up and uninstalled my flashpaq about 3 months ago. probably not going to program the jeep again.

I don't even think about it any more, I just drive it...
rattlewagon is offline  
post #7 of 11 Old 11-30-2010, 08:14 PM
motor_car
Registered User
2010 JK Wrangler 
 
Join Date: Aug 2007
Location: Ontario
Posts: 124
I could feel this kind of lag, or flat spot in acceleration, in my old 2007 JK with manual and 3.21 gears, exactly as described. Also, ihe throttle delay was so great that blipping the gas pedal would do nothing. Yes, i'm a blipper, especially while reversing.
When i switched to my current 2010 JK with manual and 4.10 gears and tow option, i noticed that now blipping works like it should, and i'm a happy blipper once again, and the lag in 3rd take-up is gone.
Maybe it's worth asking the dealer if there is a flash to take care of that? Or maybe a setting for tow option that may fix the lag?
motor_car is offline  
post #8 of 11 Old 12-01-2010, 03:11 AM
Green08
Registered User
 
Join Date: Apr 2009
Posts: 247
I had what I would say was a delay as well when shifting between gears. It almost felt like turbo lag in the old days, like it was bogging down before hitting the power sweet spot. In my case the Superchips Flashpaq resolved this and I'm pretty happy.
Green08 is offline  
post #9 of 11 Old 12-01-2010, 05:56 AM
paul84043
Registered User
2012 JK Wrangler 
 
Join Date: Oct 2010
Posts: 2,770
2010 Wrangler Unlimited 3.73's/6 spd, never noticed anything like what you're describing. It's no speed demon, but my shifting is very positive and consistent.
paul84043 is offline  
post #10 of 11 Old 12-01-2010, 06:38 PM
Lynhalla
Member
 
Lynhalla's Avatar
2008 JK Wrangler 
 
Join Date: Sep 2010
Location: St. Johns
Posts: 354
havent noticed anything like that on mine...good luck
Lynhalla is offline  
post #11 of 11 Old 12-01-2010, 07:21 PM
Pan51
Registered User
2012 JK Wrangler 
 
Join Date: Mar 2005
Posts: 55
mine would stumble for about a second of two ...but it went away i figured maybe some not so great gas...
Pan51 is offline  
Reply

Tags
3rd gear , accelerate , rpm , slip , transmission

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











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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
re gear a d44 with limited slip - is the shop right? drummerchukb1 TJ Wrangler Technical Forum 17 10-30-2009 10:27 PM
Dana 44 rubicon rear limited slip gear oil, synthetic or regular gear oil what weight rutacon05 TJ Wrangler Technical Forum 6 09-16-2009 08:53 AM
5th gear slip-out. RioWrangler YJ Wrangler Technical Forum 2 06-27-2008 09:22 PM
Limited Slip Mate Gear? dr_finklestein TJ Wrangler Technical Forum 0 04-27-2008 09:03 AM
Val 75w-140 limited slip Full Synv gear oil bikerjeep TJ Wrangler Technical Forum 8 08-25-2005 01:49 PM

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