I have problems with my 4WD.

[LowDownFab]

I bought a '93 Explorer from a "friend" with the promise of "Install the trans and it'll be good to go".:thumbdwn:

It's a 1993 w/ 4.0l
4x4 4 door
6" Superlift Suspension Lift on 33" MT Baja Claws

I have installed the transmission and transfer case, truck now runs and drives but the 4x4 does not engage. I took apart the transfer case shift motor and replaced the bushing in it. I now get the 4 high light in the dash to light up, but 4 low still no lights on and neither 4 high or low engage. I am getting frustrated and am almost to the point that I'm sorry I bought it. The truck was purchased solely for trail/mud use so the 4wd is crucial.

Any help greatly appreciated!!

Brandon

 

[1Aauto]

Welcome to the site.

 

[explorerguy89]

welcome and any fuses blown? check all wiring and make sure you shift while in nuteral or it wont engage

 

[BrooklynBay]

Welcome to this forum! I've renamed your thread, and moved it into the transmissions & transfer cases section.

 

[MrShorty]

2 parts to getting the 4wd to engage: 1) transfer case has to lock in and 2) both hubs have to lock in. The first thing I would do would be to see which of those two items is not happening. Do you still have the stock auto hubs or manual hubs?

 

[LowDownFab]

I have gone over all the fuses and wiring, all of which is okay. I am shifting into 4wd while in nuetral also but still no go. The truck still has the auto hubs, how do i check them to make sure they're engaging??

 

[MrShorty]

I'm not familiar with the specific engineering of the auto hub, but it is the rotation of the axleshafts that causes the mechanism to engage. So, the first thing I'd probably do would be to crawl under the truck (t-case in 2H), grab the front driveshaft, and rotate it. I would expect it to rotate only a couple of turns at most before the hubs lock in. If you can rotate the shaft indefinitely, then one or both of the hubs aren't locking in (you should be able to see which axleshaft is turning to determine which hub isn't locking in).

If you can put it in 4H, and get it "stuck" (rear wheels on jackstands should work if you can do it safely), then you can have someone look to see if either front axleshaft is turning without the corresponding front wheel turning. If either axleshaft can rotate without the tire spinning, then that hub is bad.