4x4 issues

[supertremendous]

so my 1992 Explorer XLT wont shift into 4x4. ill push the 4hi button on the dash and nothing will happen, the light wont even come on. i was thinking it could be the shift motor but i'm wondering if you guys think it could be a more serious electrical issue.

 

[drdoom]

Probably a vacuum problem with the front axle. Shift encoder motor is just for range shifts H-N-L.
Edit: there is a good 4x4 troubleshooting article here search for it.

 

[RangerX]

1st Gens aren't vacuum operated, so it's not that.
99% of the time, it's the shift motor. They do that with age.
There's a couple good stickied threads, one about 4wd troubleshooting, one about shift motor rebuild.

 

[jjim2ufornw]

1994 ford ranger 4 wheel drive will not work at all. The 4th x 4 lights on dash are lit up but nothing happens.