Full-time vs. Part-time 4X4 - JeepForum.com
Reply
 
LinkBack Thread Tools
post #1 of 25 Old 02-26-2010, 12:32 PM Thread Starter
JuddRacing
Registered User
2002 TJ Wrangler 
 
Join Date: Sep 2009
Location: Florida
Posts: 13
Full-time vs. Part-time 4X4

Stupid question, but on my dash it has a Part-time and a Full-time light. In 4hi it has only ever said Part-time. I checked the manual and I can't find anything listed as to what the difference is.

JuddRacing is offline  
Sponsored Links
Advertisement
 
post #2 of 25 Old 02-26-2010, 12:33 PM
alex211
Registered User
1995 XJ Cherokee 
 
Join Date: Aug 2009
Location: NW Pennsylvania
Posts: 1,752
That light will only work if you have an NP242 transfer case, I think.

95 xj bone stock for now
alex211 is offline  
post #3 of 25 Old 02-26-2010, 12:35 PM
MacK
Registered User
2015 JK Wrangler 
 
Join Date: Oct 2007
Location: Bethany Beach
Posts: 3,134
"Part" time means it's on for off road use, where "full" time means it's for "all the time" meaning on road use as well. It's weird, I know.. but "part" time is referring to not using it all the time (off road) where as full time is referring to using it all the time (on road)..

My Grand Cherokee had full time and part time. I don't think Wranglers do. Correct me if I'm wrong.

I don't want your d**n lemons! What the hell are these?! Demand to see life's manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am? I'm the man who's gonna burn your house down! WITH THE LEMONS! I'm gonna get my engineers to invent a combustible lemon that BURNS YOUR HOUSE DOWN!

Mango Tango 2010 JK Wrangler Rubicon
Silver 2000 TJ Wrangler Sport
---
Quote:
The 2008 Jeep Wrangler is not so much an SUV as it is an experience. It's slow and loud, handles poorly, has crummy interior materials and features doors that provide virtually no crash protection. But when it comes to off-road performance, the Wrangler is simply the best choice available.
MacK is offline  
post #4 of 25 Old 02-26-2010, 12:36 PM
NotURMailman
Web Wheeler
 
NotURMailman's Avatar
2005 TJ Wrangler 
 
Join Date: Nov 2006
Location: 'Round Here
Posts: 7,050
The cluster is a generic one made by Jeep for multiple models. Some t-cases have a full time 4wd position. The difference being that full time 4wd will have a differential in the t-case between the front and rear outputs; and a part time does not, meaning that both outputs always turn at the same speed.

My RHD TJ - Savvy equipped... And loving it!

I drive on the right side, what's wrong with you?


Quote:
Originally Posted by Deacon View Post
It's difficult to take you seriously. It's like you're an easily perturbed autistic teenager who's drunk typing the whole time.
NotURMailman is online now  
post #5 of 25 Old 02-26-2010, 12:40 PM
Vodkaman
Registered User
2006 TJ Wrangler 
 
Join Date: Jan 2010
Location: Moscow
Posts: 198
Quote:
Originally Posted by JuddRacing View Post
Stupid question, but on my dash it has a Part-time and a Full-time light. In 4hi it has only ever said Part-time. I checked the manual and I can't find anything listed as to what the difference is.
How did you find this out? How many positions of TC shifter do you have?
Vodkaman is offline  
post #6 of 25 Old 02-26-2010, 02:07 PM Thread Starter
JuddRacing
Registered User
2002 TJ Wrangler 
 
Join Date: Sep 2009
Location: Florida
Posts: 13
I can see the "Full-time" indicator on the panel even though I've never seen it lit. My TC shifter just says 2H, 4H, N, 4L.
JuddRacing is offline  
post #7 of 25 Old 02-26-2010, 02:11 PM
Varnish
Registered User
 
Varnish's Avatar
1998 TJ Wrangler 
 
Join Date: Feb 2005
Location: Juneau, AK
Posts: 4,369
Garage
Quote:
Originally Posted by NotURMailman View Post
The cluster is a generic one made by Jeep for multiple models. Some t-cases have a full time 4wd position. The difference being that full time 4wd will have a differential in the t-case between the front and rear outputs; and a part time does not, meaning that both outputs always turn at the same speed.
Yep, my '97 cherokee seems to use the same dash and it has the np242 with full time.

'98 TJ, '06 LJ, '88 YJ, '86 CJ, '99 XJ 4dr SE
Varnish is offline  
post #8 of 25 Old 02-26-2010, 02:11 PM
Jerry Bransford
Administrator
 
Jerry Bransford's Avatar
2004 TJ Wrangler 
 
Join Date: Jan 2003
Location: Escondido, California
Posts: 64,301
The Wrangler's 4x4 system is strictly a part-time 4x4 system, there is no full-time 4x4 system available on a TJ. Your dash was originally also used in the Cherokee that had a full-time 4x4 system optionally available. The Full-Time indicator will never light in a Wrangler.

Getting Savvy...

When you have a choice, buy American.
Jerry Bransford is online now  
post #9 of 25 Old 02-26-2010, 02:58 PM
TheSherp
Registered User
2001 TJ Wrangler 
 
Join Date: Dec 2008
Location: Michigan
Posts: 427
Judd dont feel bad, I had the same question but was afraid to ask. LOL
TheSherp is offline  
post #10 of 25 Old 02-26-2010, 03:07 PM
Unlimited04
This post/info=my opinion
 
Unlimited04's Avatar
2004 LJ Wrangler 
 
Join Date: Dec 2005
Location: Colorado
Posts: 24,147
Quote:
Originally Posted by JuddRacing View Post
I can see the "Full-time" indicator on the panel even though I've never seen it lit. My TC shifter just says 2H, 4H, N, 4L.
thats normal. mines the same way. same dash was used in the XJ. XJ's were available with the both NP242 t-case or the NP231. TJ's only got the NP231. The difference being the NP242 has an extra shift point for Full-Time 4x4, which was basically a 48%/52% bias "open" diff style 4wd, allowing the front and rear driveshafts to travel at different speeds. The Part-Time 4x4 NP231 only allows the front and rear shafts to travel at exactly the same speed. Remember how when you go around a corner all 4 wheels travel at different speeds due to the arc of the circle? Well...Part-Time forces both driveshafts to spin at the same speed....so if you use Part-Time on high traction surfaces....kaboom, something blows up. Front wheels must be allowed to slip to account for this difference.
Unlimited04 is offline  
post #11 of 25 Old 02-27-2010, 04:25 AM
Vodkaman
Registered User
2006 TJ Wrangler 
 
Join Date: Jan 2010
Location: Moscow
Posts: 198
Quote:
Originally Posted by JuddRacing View Post
I can see the "Full-time" indicator on the panel even though I've never seen it lit. My TC shifter just says 2H, 4H, N, 4L.
Lucky you are! You can swap to 242 TC, and have a proper indication.
I will try to pick up a sunny day and look at my dash board too. Maybe I have same luck.
Vodkaman is offline  
post #12 of 25 Old 02-27-2010, 08:31 AM
Border Dave
Got Sand?
 
Border Dave's Avatar
2001 TJ Wrangler 
 
Join Date: Dec 2005
Location: Bellingham, WA
Posts: 2,621
Quote:
Originally Posted by Jerry Bransford View Post
The Full-Time indicator will never light in a Wrangler.
Never say never.



Once I get the 242 in there, I'll have to figure out how to get that lamp to light up when I shift it into fulltime. The above picture was taken during a gauge test where you hold the trip meter reset button while turning the ignition to "on."

Edit: It would be nice to have the "4 LO" lamp light up also when appropriate. Hmmm...
Border Dave is offline  
post #13 of 25 Old 02-28-2010, 06:20 PM
WVTJ
Registered User
2001 TJ Wrangler 
 
Join Date: Oct 2009
Location: aba
Posts: 99
I'm new and I got it used, so when I shift to

4H = Part Time light
4L = Part Time light

Is there no 4LO light????
WVTJ is offline  
post #14 of 25 Old 02-28-2010, 06:22 PM
Jerry Bransford
Administrator
 
Jerry Bransford's Avatar
2004 TJ Wrangler 
 
Join Date: Jan 2003
Location: Escondido, California
Posts: 64,301
Quote:
Originally Posted by WVTJ View Post
Is there no 4LO light????
You are correct, there is no 4Lo light since it's hard to not know when you're in 4Lo.

Getting Savvy...

When you have a choice, buy American.
Jerry Bransford is online now  
post #15 of 25 Old 02-28-2010, 06:31 PM
WVTJ
Registered User
2001 TJ Wrangler 
 
Join Date: Oct 2009
Location: aba
Posts: 99
My Jeep was totaled when I got it I knew 4Lo worked, just figured the bulb was burned out.
WVTJ 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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
part time 4wd vs full time.. winner is? DocJake Wrangler General Discussion 42 09-01-2012 02:47 PM
How do you go from part time to full time? tvankampen TJ Wrangler Technical Forum 24 01-06-2009 05:46 PM
Full time, part time, 4 lo questions???? Puntachalupa TJ Wrangler Technical Forum 3 03-07-2008 06:59 PM
full time and part time 4low4hi happycamper TJ Wrangler Technical Forum 10 07-27-2006 12:54 AM
Part-time VS Full-time 4WD light Traumahawk TJ Wrangler Technical Forum 12 08-09-2005 11:39 AM

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