I try to put my truck in four wheel (it's electronic) i can hear it try to change over but when i drive my front wheels wont spin... any ideas?

 

hey man, i had the same problem. climb under your truck and follow the wire back from the diff. and make sure the wire harness is fully connected. mine had pulled apart just a little and prevented it from locking. i just replaced the harness and everything has been fine since. see if this is your problem BC i be it is

 

did you completely replace the harness or un plug and replug...?

 

i just un-plugged and re-plugged and it worked but i noticed the reason it came loose was the little plastic snap that held it plugged in was broke so i replaced it.

 

still nothing...any other ideas?

 

Not off the top of my head im just a hobbiest. I'm currently sitting in the middle east so research on my end is difficult but send a message to HammerZ71 he should be able to help you he is very knowledgable. sorry i couldnt help you more brother.