Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum > 4X4 light on when in 2WD

Join Wrangler Forum Today


Thread: 4X4 light on when in 2WD Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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 email address for yourself.
Email Address:

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
02-18-2012 11:56 PM
Raif A good way to tell is to have someone look at your front driveshaft while you are rolling. (make sure you are in 2wd) If it spins, it is likely this has been done to it.
02-18-2012 11:52 PM
Raif
Quote:
Originally Posted by screech1 View Post
what is that?? i was told they did something as far as a posi...
I did it to my cherokee, all you do is take the shift fork assembly off of the axle. remove one of the C clips off of the shaft inside of it, move the fork over to the locked position, and re-install the C clip in the same spot on the shaft. It will now be on the opposite side of the shift fork, holding it in the locked position. Next step is to slide the collar on the 2 piece front axle into the locked position. which is at the point in which the two axle halves meet. Basically it is like driving around with your hubs always in, but much less abrasive on your hardware. You are still fully able to drive in 2wd, but your 4wd is only a lever pull away. Much more reliable that vacuum 4x4. The thing is! like I said. I am not sure if this is the case with the YJ wrangler. Hope this helps!
Here is some more good info, and pictures regarding the vacuum bypass mod.
Free D30 CAD Bypass (-91) - Jeep Cherokee Forum
02-18-2012 03:03 PM
screech1
Quote:
Originally Posted by Tyewilly View Post
The indicator light switch can be in one of two places.
Older models have a vacuum actuated switch on the firewall next to the battery. One vacuum line and two wires.
Newer models have a switch on the cad actuator that is mechanically actuated by the cad shift-fork rod. Two wires on the drivers side (opposite the vacuum lines) in the cad housing on the passenger side front axle tube.
thanks for the info!!!
02-18-2012 03:02 PM
screech1
Quote:
Originally Posted by Raif View Post
If it is anything like my old cherokee (I'm not sure) Someone may have possibly completed the D30 posi conversion, and never removed the vacuum hose. But like I said, not too privy on the older YJ 4x4 systems.
what is that?? i was told they did something as far as a posi...
02-18-2012 01:37 PM
Raif If it is anything like my old cherokee (I'm not sure) Someone may have possibly completed the D30 posi conversion, and never removed the vacuum hose. But like I said, not too privy on the older YJ 4x4 systems.
02-17-2012 12:24 PM
Tyewilly The indicator light switch can be in one of two places.
Older models have a vacuum actuated switch on the firewall next to the battery. One vacuum line and two wires.
Newer models have a switch on the cad actuator that is mechanically actuated by the cad shift-fork rod. Two wires on the drivers side (opposite the vacuum lines) in the cad housing on the passenger side front axle tube.
02-17-2012 11:33 AM
screech1
Quote:
Originally Posted by JeepAddOns-Chris View Post
If it goes off when in 4WD, the vacuum line going to the disconnect is on backwards.
no, it stays on when its in 4wd and 2wd
02-17-2012 11:30 AM
JeepAddOns-Chris If it goes off when in 4WD, the vacuum line going to the disconnect is on backwards.
02-17-2012 11:26 AM
dmcg is it in 4wd when the light stays on?
02-17-2012 11:12 AM
mnhogrider My guess would be that there is an external switch somewhere on the transfer case that has failed or is out of adjustment or the wiring hooked to it has a problem.

I'd get underneath and look around the transfer case especially by the shift linkage.

I might not even be on the right track, but that's where I'd start.
02-17-2012 11:02 AM
screech1
4X4 light on when in 2WD

New yj owner. so i am thinking it must be a vacuum line came off or something right? i am not sure where to look tho. it shifts in and out fine just the light doesnt turn off. not a huge issue just thought i would fix it.

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


All times are GMT -5. The time now is 10:27 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC