Transmission issues after stroker build - JeepForum.com

 
LinkBack Thread Tools
post #1 of 12 Old 06-18-2013, 08:42 PM Thread Starter
scross1220
Member
 
scross1220's Avatar
2012 WK 
 
Join Date: Mar 2013
Location: Linden
Posts: 477
Transmission issues after stroker build

I have a 2002 JGC 4.0l that I strokered to 4.6l. After the build and testing during engine breakin I noticed that when driving the when the trasmission is shifting from 3rd to 4th that the shifting is not always smooth and sometimes shifts quikly with at little reving. This is more aparent when I and driving and let off the gas during the time the transission shifts from 3rd to 4th gear. I did not have this befor I strokered it but not it happens a lot. There is no jerking but the best way to describe it is like it misses the shift. What am I dealing with?



______ooooo
/__l_l_,\____\,___
l_---l_l__l---[o]llllll[o]
_.(o)_)__(o)_)--o-)_)


If you're not fixing it, you're not driving a Jeep.
scross1220 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 06-18-2013, 09:15 PM
Terminal
Registered User
2000 WJ 
 
Join Date: Jan 2013
Location: Lexington
Posts: 159
Quote:
Originally Posted by scross1220 View Post
I have a 2002 JGC 4.0l that I strokered to 4.6l. After the build and testing during engine breakin I noticed that when driving the when the trasmission is shifting from 3rd to 4th that the shifting is not always smooth and sometimes shifts quikly with at little reving. This is more aparent when I and driving and let off the gas during the time the transission shifts from 3rd to 4th gear. I did not have this befor I strokered it but not it happens a lot. There is no jerking but the best way to describe it is like it misses the shift.

What am I dealing with?

Sounds like you're dealing with a junky 42re tranny that barely held up to the stock 4.0 power to begin with
Terminal is offline  
post #3 of 12 Old 06-18-2013, 09:29 PM
chrism1367
Registered User
2003 WJ 
 
Join Date: Dec 2009
Location: Ohio
Posts: 790
Mine does the same thing on the 3-4 shift, doesnt take long to shift but a little harder than other gears, it is not a smooth shift. I'm guessing clutch pack or something worn. Was like that when I bought it. After doing complete filter and fluid change it got a little smoother. Hasn't gotten any worse though since I've had it which is good.
chrism1367 is offline  
post #4 of 12 Old 06-18-2013, 09:41 PM Thread Starter
scross1220
Member
 
scross1220's Avatar
2012 WK 
 
Join Date: Mar 2013
Location: Linden
Posts: 477
Ah crap sound like mine. I didn't have the issue till the the stroker build but I beginning to think the new engine may be too much for it. Did a fluid change 8k ago but the filter has not been changed. Are there any adjustments Like the shift bands that could help?


______ooooo
/__l_l_,\____\,___
l_---l_l__l---[o]llllll[o]
_.(o)_)__(o)_)--o-)_)


If you're not fixing it, you're not driving a Jeep.
scross1220 is offline  
post #5 of 12 Old 06-18-2013, 09:55 PM Thread Starter
scross1220
Member
 
scross1220's Avatar
2012 WK 
 
Join Date: Mar 2013
Location: Linden
Posts: 477
Its definately a slip now that I have read some threads. I have to listen to see if its slipping from 2nd to 3rd or 3rd to 4th.


______ooooo
/__l_l_,\____\,___
l_---l_l__l---[o]llllll[o]
_.(o)_)__(o)_)--o-)_)


If you're not fixing it, you're not driving a Jeep.
scross1220 is offline  
post #6 of 12 Old 06-19-2013, 09:35 AM
Cebby
Registered User
2000 WJ 
 
Join Date: Feb 2007
Location: Pittsburgh (Oakmont)
Posts: 562
I think there is some band adjusting you can do to it with a filter/fluid R&R. I've yet to crack into my tranny - scared of it...

Tech Writeups and more...
2000 WJ Laredo 4.0 4x4 Taupe Frost - Clayton LA Front/Rear | IRO 3" Springs + 3/4" KOR | Bilstein Shocks | JKS Discos/Trackbar/Draglink & Tierod | Dual KOR Stabs | Spidertrax Spacers | 265/70R17 Duratrac's on JK 17's | Black Magic Brakes w/Centric Rotors | Akebono Calipers | Griffin Rad | K&N Drop in | Magnaflow Cat & Muffler shorty setup | Diehard Platinum (Odyssey) | RB1-NAV-Sirius-Chg-iPod | OEM Tow Hooks F/R
Cebby is offline  
post #7 of 12 Old 06-19-2013, 10:10 AM
chrism1367
Registered User
2003 WJ 
 
Join Date: Dec 2009
Location: Ohio
Posts: 790
I think there is some adjustment you can do but I'm afraid of turning my trans into a big paperweight
chrism1367 is offline  
post #8 of 12 Old 06-19-2013, 10:35 AM
the88thpianoman
Registered User
2003 WJ 
 
Join Date: Apr 2008
Location: Tampa
Posts: 5,251
Quote:
Originally Posted by scross1220 View Post
Ah crap sound like mine. I didn't have the issue till the the stroker build but I beginning to think the new engine may be too much for it. Did a fluid change 8k ago but the filter has not been changed. Are there any adjustments Like the shift bands that could help?
Before you get into that hairy process, try adjusting the throttle kickdown cable. It's the only adjustable cable of the three connected to the throttle body. Try pulling that out a couple notches at a time to increase line pressure inside the transmission and get firmer, quicker shifts. That's also much better for your transmission because the clutches spend less time slipping, so they wear less. The only reason it shifts soft from the factory is that most consumers prefer a gentle, comfortable shift.

2003 WJ in Jeep Green Metallic, 4.0/242/4.10's. 4" Teraflex springs w/ RE monotube shocks and IRO short arms, cheap intake w/ amsoil filter, 2.5" hi flow cat and back exhaust, lots of lights and other misc crap.

Check out my build thread here: Life lessons and budget build
the88thpianoman is offline  
post #9 of 12 Old 06-19-2013, 01:04 PM Thread Starter
scross1220
Member
 
scross1220's Avatar
2012 WK 
 
Join Date: Mar 2013
Location: Linden
Posts: 477
That was it. I adjusted the throttle kickdown cable 5 clicks and I was fine. There was too much slack in the cable. Thanks for your help.


______ooooo
/__l_l_,\____\,___
l_---l_l__l---[o]llllll[o]
_.(o)_)__(o)_)--o-)_)


If you're not fixing it, you're not driving a Jeep.
scross1220 is offline  
post #10 of 12 Old 06-19-2013, 01:19 PM
chrism1367
Registered User
2003 WJ 
 
Join Date: Dec 2009
Location: Ohio
Posts: 790
Quote:
Originally Posted by scross1220 View Post
That was it. I adjusted the throttle kickdown cable 5 clicks and I was fine. There was too much slack in the cable. Thanks for your help.
I def have to try that. Simple as it sounds I hope
chrism1367 is offline  
post #11 of 12 Old 06-19-2013, 03:52 PM Thread Starter
scross1220
Member
 
scross1220's Avatar
2012 WK 
 
Join Date: Mar 2013
Location: Linden
Posts: 477
Thank you again Jonathan for that tip it worked like a charm.


______ooooo
/__l_l_,\____\,___
l_---l_l__l---[o]llllll[o]
_.(o)_)__(o)_)--o-)_)


If you're not fixing it, you're not driving a Jeep.
scross1220 is offline  
post #12 of 12 Old 06-20-2013, 01:29 PM Thread Starter
scross1220
Member
 
scross1220's Avatar
2012 WK 
 
Join Date: Mar 2013
Location: Linden
Posts: 477
I have a question for you all. When I was having the issue with my transmission not shifting correctly I made a call to AAMCO and asked if they could adjust the bands in my tranny. The machinic said to me that there were no adjustments on my transmission and that they were auto adjusting. I am not an expert but I know that it was a lot of bull. The problem ended up being a TV kickdown cable adjustment as mentioned by jonathan but what I like to know is why the machanic told me there was not band adjustments on transmission? Any thoughts?


______ooooo
/__l_l_,\____\,___
l_---l_l__l---[o]llllll[o]
_.(o)_)__(o)_)--o-)_)


If you're not fixing it, you're not driving a Jeep.
scross1220 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