another 4wd problem....not engauging ..stuck

[tturbonegro]

Stuck in snow...4wheel drive not working...m/t baja mtz's didnt help..
4 hi and low lights come on in dash..
hubs turn into lock freely..
but they are deffintly not engauging..only back wheels spinning..it was in 2 ft of snow and friends with other psd's were motoring right thru it..micky t's were just packing with snow..
dug it out and its still not working..it was working a month ago and i dont know if it could have effected it but i drove thru a flooded 2-3ft of salt water since...
anything i shuld try first?
fuse or relays?
Best way to check hubs, driveshaft, or transfer case?
Thanks, im a 4x4 noob

[Kilroy]

Sounds like you may have water in the hubs that froze and is preventing a lock. If it is water it will ultimately ruin the bearings.

[ipz2222]

sometimes vac operated locking hubs just stick. Some years (not sure if all ) also had manual hubs. If the automatic doesn't work, just turn the center lock mechanism and you have 4wd. My 01 has it. A local 4wd shop said he had never heard of that. I had to prove it to him.

[tturbonegro]

They are manual lock hubs, no auto switch..
Switch says 2wd 4hi and 4low..

When it is in 2 wheel the front driveshaft spins free..
When i put it in 4x4 and lock the hubs, the driveshaft is locked..

[ipz2222]

do you mean the auto lock factory hubs have been replaced??

[bigcaveman]

ive never heard of auto locks either if you have the manual locks. Didnt think you could have both at the same time. why would you need that. I just figured when you lock your hubs then its like pushing another diff until you put the tcase into 4hi or lo. Am I wrong on that

[tturbonegro]

sorry for confusion...factory manual lock hubs

[baddkarmaracing]

if your truck has a switch on the dash then you have autohubs BUT they only work when going to 4hi i believe. the auto hubs can also be used manualy though.


it sounds like to me that you have a broken hub

[bigcaveman]

huh interesting have to look at the cd and see how all that works but I dont have it on my truck anyway. Never been a fan of them. When you need them they dont work. LOL

[ipz2222]

"when you need them, they don't work" .. Beenuseing mine for 5 years .

When you select 4wd hi or low, the t case motor engages the tcase to the frnt driveshaft and the auto hubs engage. You can manually engage the hubs but if the t case motor does not engage the t case then you still don't have 4wd. They both have to work.