#1 Locker pump continuously running = not locked
#2 wheels rotate different directions = not locked

Unless I'm totally missing something. (which is always possible)

Haha <img src="/forums/images/graemlins/smile.gif" alt="" /> ,
I just took it to a shop, looking at the job, not having proper tools and a helper, I gave up. Hopefully they wont charge me alot!
But I did do a couple of tests:

Backend jacked up:
- While in Parking: a bit of play, wheels turn oposite directin.
-While in Neutral: Wheels turn same direction.

Onething I am dead sure is that the problem is with the locker gear stuck and the spring (or whatever that retracts the actuator)is not doing it is job.
Another thing I mentioned about the 4H not being able to engage "on the fly"; is hopefully due to the the above problem. I should hear back from the shop by the end of the day today and will report back <img src="/forums/images/graemlins/cheers.gif" alt="" />

After going to two service shops including one dealer, the prices are so high, (around $700) that I am going to give it a try, my only worry is how to pull the axle shafts out 3" as the manual states, I just have to man up and do it myself. <img src="/forums/images/graemlins/smile.gif" alt="" />

If it were mine and not saying this is the correct or safe thing to do...but, before disassembling....I would jack up both rear wheels to remove any loading from gears, disconnect air line to locker, and then ensuring your in 2WD drive drive forward and reverse a few times then tap the carrier case with a BFH...repeat...then repeat again...jar that sucker loose...

I did try hitting the housing with a Sludge Hammer while my wife was twisting the wheels back and forth and had a 12 volt vacuum (mattery pump) at suction attached to the air hose (going the the actuator) <img src="/forums/images/graemlins/frown.gif" alt="" /> no help.

I'm gonna say it one more time...

If your rear wheels spin in opposite directions with the rear wheels jacked up, and it in park, IT IS NOT LOCKED.

If they will NOT spin at all with it in park, it is locked, and if they spin the same direction when in neutral, it is locked.

If you locker pump runs all the time, the diaphragm has a tear, or some other problem, and it's not going to mysteriously lock somehow, and become stuck.


I honestly think you're chasing the wrong thing. I bet you've got a transfer case stuck in 4hi.

It's a BUNCH eaiser to pull those hub slugs up front, and see if the binding goes away than it is to pull that rear differential.

These are the reasons I think rear diff is locked:

-When jacked up wheels turn the same direction when in Neutral.
-When the back wheels were jacked, I put the car in D & R (front wheels on the ground, 2H) reved up to speeds of 30MPH (rear wheels turning only).
-My turning radius is ridiculous, I hear the tires slip and squel fighting the simultaneous rotational speed of both rear wheels.
-Mits dealership diagnosed the locked rear diff aswell.

There was a reason I gave you 4 different tests to try. If you want to diagnose what's really wrong, do all of them and report results. If you LOCK the pinion gear by putting it in park, and the wheels rotate at all, the rear diff is NOT locked. If it was locked, you could not rotate the wheel because there is no differential action - its LOCKED by the locker and the park pawl in the tranny. And it's not the first time a mitsu dealer made a wrong diagnosis....

Curtis has as good a mechanical knowledge as anybody who ever worked at a mitsu stealership. Why not listen to him?

What fasteddy and land raider said.

I think you'll find that most advice you'll get here is sound especially from these two among many others.

Of course you could guess your way into a fix but personally if you don't know, I'd say it's much better to ask.

Agreed with all above - if you're looking for advice on here, you really have to follow the suggestions to the letter and give us feedback. You are very lucky to have several of our best diagnosticians on your side, but they can't help you if you don't follow and report back. No one is saying to replace any parts yet, or even pull anything off. This might not be as bad as you think... But you gotta "help us help you"... <img src="/forums/images/graemlins/cheers.gif" alt="" />