There should be a vent at the top back of the case. An actual tube, or just a button/knob diameter of a penny and 3/8" thick. Is this plugged or in the case of the tube is it crushed?
get the seals checked out around the transfer case and tranny
Replace the seals.
never mind i found the problem and fixed it...
the front diff is not engaging its not the transfer case which is manual the solenoid needs replaced
Either the output seal on the trans or the input seal on the transfer case has failed. You will need to remove the transfer case to change both seals.
Either the transmission tail seal or the transfer case input seal has failed. The transfer case has to be removed to replace the seals.
if you can see it at the front of the trans its the front seal or rear seal at back of trans but there is also a seal between the trans and transfer case that can go causing your transfer case to fill right up with oil, hard on seals. to check this remove top plug on transfer case and if more than a few drops come out like quart or 2, seals between the trans and transfer case are bad. hope this helps.
shaft axle seals
Yes, that can happen. When it does, the transfer case will need replaced. Causes include mileage wear and running with low fluid.
Encoder motor (transfer case motor) needs to be replaced it is on the transfer case. the gears strip out inside it, or the shaft breaks. you can get them on e-bay. really easy to change.
No, the oils are held separate by a pair of seals.No, the oils are held separate by a pair of seals.
the shifter sheet needs replaced this can be done without removing the transfer case