*4lo but no 4hi*

[Caman96]

Another consideration is rob_z71 said:

“things ive replaced (dont worry i returned everything because it didnt fix the problem):
front diff actuator, transfer case encoder motor, push button on dash, and transfer case control module”
We don’t know if he tried used and or cheap Chinese parts.

 

[Btp55]

4hi is NOT working.... Push the button and nothing... Yes harness is good, like I said everything works perfectly fine after battery is disconnected for a bit but only for a short time

 

[Schurkey]

4hi is NOT working.... Push the button and nothing... Yes harness is good, like I said everything works perfectly fine after battery is disconnected for a bit but only for a short time

You're saying 4hi is acting like the transfer case is in neutral? Truck won't move forward or backward?