My 4x4 doesn't work, I bought it like that, what is the likely part/parts that are broke and need replaced?

 

Going to need a bit more info. Year, push button or manual, and any diagnostics you've done for it

Without knowing my first dart would be the vac system

 

its a 99' 2 door push button 4x4

 

Could be any of the following: Front Dif Vacuum actuator, button on the dash, TCCM or Encoder/Transfer Case Motor.. Do the lights come on the buttons? Do you here a click from the TCCM? Does the drive shaft off the transfer case spin freely when in 2wd and when you push 4hi or 4lo does the driveshaft stop being able to rotate by hand?


Give us some details on what it is doing, if anything at all.

P.S. The search function is your friend. 4x4 issues are a dime a dozen and often, with searching, your answers can be found.

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There's no lights, no clicks, nothing almost like it doesn't exsist lol. I'm going to replace my actuator first.
I haven't tried messing with the shaft yet, but if it locks when I press the 4x4 what does that mean?

 

I wouldn't replace it yet.

If you don't have any lights on your push button start there. Check fuses and plugs (i.e. cleaning or tight fits)

Button module is a pop out module that can be checked easy, the TCCM is behind the kickpanel on the passenger side. Check those connections too

 

I checked all of my connections, nothing looked weird or out of place, it all checked out to me.

 

Mine would only go to 4 lo and 2 hi. I just unbolted my battery and disconnected/reconnected the TCCM, waited an hour, re bolted, and everything works! I was going to start throwing parts at it

 

easier thing to do, just an FYI for next time, pull the TCCM fuse from under the dash for a minute, put it back in. resets the tccm.

 

I got it! It was my courtesy lights fuse that was bad, I replaced that and everything lit up and switched over perfectly!