4X4 KEEPS BLOWING FUSES

A short or overload. Get a wiring diagram. Find the circuit. Disconnect items on that circuit one at a time. If all are disconnected and the fuse still blows, you've got a wiring harness issue.

My friend had same problem so i waited till fuse blew an what i was doing when it blew the nutrel safety was getting hot replaced it now he is good to go

start chasing wires. Sounds like something is shorted or worse, a hot wire may be grounded out.
Good place to start is all wires headed to the started as that is a common place for a power wire to melt against hot exhaust.
(that was the case for my 99 chevy)
Check all other fuses and make sure none are blown.

What you have done? You Just damage the TCCM and that's why you will not manage to shift 4x4. Why this happened? Because you had shortage somewhere and you receive blown ATC fuse.You put a bigger fuse in capacity where the was stronger to blown and the fault moved to the tccm system which was not protected and blown.Ask for an expert to check and see whether the fault is easy to get fixed.

Your fine to drive it on 2wd till you make it to the dealer, but in the mean time check your 4wd fuse. The 4X4 encoder motor is know to blow fuses in cold days and it's a simple fix by replacing a fuse for 35 cent then having a dealer replace it for $65.00 service charge. Good luck and hope ti's a simple fuse that has gone bad, there common to go bad when 4wd is engaged during cold operation.

somewhere afterthat fuse is a dead short, not much fun but its detective work from here, it helps if you have a wiring diagram and could save you time

check transfer case electrical switch, sometime if it bad it will also blow the fuse. don't recommend you put any higher fuse than recommend, If the fuse blow there is a short some where and by putting higher amp fuse you might short or burn something else beside the fuse. if that check out than check your transfer case motor, might lock up and not allowing the motor to turn instead it short the fuse. don't drive the car, just leave it in park, put correct fuse amp back in and unplug transfer case electric switch and turn the key on (dont start the car) and see if the fuse blow; if not plug it back in and see if it blow the fuse. if that is not the case, unplug transfer case wire, and do the same and see if it blow the fuse.

Your 20 amp fuse will not blow if glowplug wire shorts. each plug draws 15 amps which is 120 amps total.I think there are in line fuses for them. Try to wring out where each output from the fuse goes, disconnect all and reconnect one at a time till it blows.That should point to your problem process of illumination! Good Luck!!

if your running trailor lights and have a plug hangen back there make sure the connections arnt shorting against each other that coul cause the prob