NP231 seems to stay engaged

superdave

NAXJA Forum User

Location

NW Tennessee

• Sep 4, 2012

• #1

97 XJ, stock 231 case. I had to engage the t-case when my trailer got hung going over a rise. 4WD worked fine and got it right over. Now it won't disengage and it seems to be binding the front end. I tried rolling slowly forward with the transmission in neutral, no joy. Tried the same rolling backward, no joy. Tried stopped in neutral, no. Park, no.

 

C

cruiser54

NAXJA Forum User

Location

Prescott, Az

• Sep 4, 2012

• #2

Here's how the factory suggests you shift the transfer case and I've been doing this since these things were new and I worked at the dealership. Quoted from the owner's manual.

"To engage, shift the transfer case lever from 2H to 4H while the vehicle is moving at any legal speed". I let off the gas, throw the lever and then tap the gas and let off.

4L position: " To engage, slow the vehicle to 2-3 MPH , shift the transmission to Neutral, then shift the transfer lever to the right and pull firmly rearward to 4L".

 

W

weebur

NAXJA Forum User

Location

Northern Illinois

• Sep 4, 2012

• #3

If that (Cruiser54's suggestion) doesn't work for you (it doesn't work for my '97 NP231 all the time) try driving forward on a flat surface in 4H @ 2-3mph and shift into 2H. Check to see if it's disengaged before you hit the highway.

 

superdave

NAXJA Forum User

Location

NW Tennessee

• Sep 4, 2012

• #4

Typically I engage 4WD while moving forward at about 5-10 MPH, but this particular time I didn't have that luxury unless I wanted to unhook the trailer and have it possibly roll backward down the hill. But I have tried disengaging with it rolling and it doesn't let go.

 

sidewaysstarion

Coffee Drinker

NAXJA Member

Location

Torrance, CA

• Sep 4, 2012

• #5

I had mine refuse to disengage, what I did was backup in an S pattern for about 10 feet and I herd the drive train disengage.

 

superdave

NAXJA Forum User

Location

NW Tennessee

• Sep 4, 2012

• #6

While in 4WD or 2WD?

 

superdave

NAXJA Forum User

Location

NW Tennessee

• Sep 6, 2012

• #7

Fixed! Put the trans in neutral, started the engine, immediately put t-case in 4 lo and then then popped it into 2wd and bingo!