XJGrason

i have a 99 XJ Classic, d30 front Chrysler 9.25 rear

When i put it into 4hi part time is while engage right away and then when i go to put it back in 2 it takes a couple hundred feet of driving for it to disengage and when it does.....IT MAKES A HUGE POPPING NOISE. LIKE CLUNNNNK. idk. Thoughts?

99superjeep01

What t case do you have? And try shifting it at low speeds then put the transmission in neutral to let it roll for a few feet. I've got a 242 and that's what I do and it works every time. It'll also make it harder if you're on dry ground.

XJGrason

i havent crawled under there yet....probably the 242. ill try some things like that tomorrow....in dirt

99superjeep01

If you have 2 wheel, 4w part time, 4w full time, neutral, and 4 low then its a 242. Pop the tranny in neutral and let it roll.

XJGrason

alright ill try tomorrow. thanks

97AT4x4XJ

I have the same problem. I think fork pads #50 are worn out.
So, when you push lever forward, it just doesn't move synchronizer sleeve #18 far enough to disengage.
It works better, when I push lever harder/faster.

XJGrason

ill try that too....any thoughts on why it make a loud as fudge pop?

RTorrez1

My 98 does the same thing. All I do after putting it back in 2wd I back up 3 or 4 feet then back into drive works every time for me.

McCaffrey

According to the manual you can put an NP242 in/out of 4WD at any legal speed. I must assume that does not include 4-LO.

XJGrason

4 lo you have to slow down to 2-3mph and put the tranny in neutral and then shift it.

91_xjcherokee

I have a 242 and I pit it in reverse. It works every time for me as well

XJGrason

but what bout the popping noise bro.

99superjeep01

Just the disengagement of it sometimes.

91_xjcherokee

I enjoy the popping noise. That way I know when it disengaged

cruiser54

The tapping of the gas and letting off is an important part of the engaging/disengaging process.

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".