Hello all, new to the forum and have an interesting problem. Let me start by saying I replaced my wheel bearings and wheels roughly 6 months ago, right after I noticed my wheels gittered when turning at low speeds. I assumed this was a power steering issue or the new tires. I have now learned from this forum that it is most likely stuck in 4x4 HIGH but has no indications on the dash. Just yesterday though the actual 4x4 High light started flashing in different variations. I get 6 flashes one time, then 8 flashes 2 minutes later on the dash and so on back and forth. When I stop I can put the truck in 4x4 high and the light stays on, same with 4x4 low. Then when I go back to 4x4 auto they go off but I still feel gittering while turning at low speeds. Any ideas to what would cause this? I see a lot of people replacing the Xfer case control module but no one seems to have the same problem.

2002 4.0L XLT 135k

 

have you verified that the transfer case as actually not shifted. how are you shifting it on the fly or stopped. have you attempted to pull codes of off the system. once you find out weather or not it has or is shifting properly or not then you can go about finding out why weather its the transfer case or not. when mine would not shift sometimes a light tap with the bottom of a hammer would make it shift.

 

How would I go about checking the transfer case to see if it has actually shifted? When I switch to 4x4 high and low and back to auto I do it all at a stop, never tried it on the fly.

 

the essayist way would be to get under the truck and listen for the sound of the motor. or just unbolt it and watch the motor move or shift the transfer case manually until your out of four wheel if in fact you are. sometimes a light tap of a hammer can get them working.