my 4x4 stoped working about a week ago. at first it would come on and i would hear the relay click, then i would shut it off and it would not go back on. i would drive around a little and try again and it would come on.. now it wont come on at all.. no light on the dash, and 4hi and 4lo dont work. i was thinking it was a fuse but if it was a fuse then it would of stopped working the first time and wouldent of been intermittent. im hoping its the switch but what do you guys think?

its an 04 with live axles

 

If no lights come on then probably the 4wd computer is dead.

 

while its running and in neutral and in 4wheel drive,tap the "shift motor"(little cylinder looking thing on the back of your transfer case) with a small hammer, see if that works, , it worked for me and edgeman4.0, lol try it before you spend money.

 

By no light do you mean no lights when you try to shift it or no lights when you start the truck? The lights should self test themselves when you start the truck.

 

whippersnapper and myself along with grabherII and redrocket went all through this issue.

when you fire the truck up the test lights should come on and display 4x4 and 4x4 low. if those lights burn then your 4x4 computer is good. next step would be to test the switch on the dash as well as all the fuses for the system. if that doesnt fix the issue, do like grabherII said and smack the motor on the back of the transfer case with a ball-peen hammer with the truck in neutral and the 4x4 switch on. this will free up the brushes in the motor and allow it to move again.

those motors are bad about dirt building up inside them and seizing the brushes. same thing happened to me and this solution fixed it.

 

im pretty sure the lights come on, on the lamp test. I'll have to check the switch.. if a new one is needed is it a pricey part?

also thanks for the help

 

Not sure how much new. I have one that you can have if you need it. Just pay shipping.

 

I appriciate it, I'll let you know ether way

 

i got a spare 4x4 switch if you need to test it. we can meet up or w/e and if u talked to nate i can prob meet up too...he lives in the same town as me