I generally don't like to drive in Full-Time, but with the snow and all I had it in Full-Time this weekend, but this morning the roads were fine so I went to switch back to 2 wheel drive and the Part Time light stayed on . . . it felt like it was in 2WD but I couldn't be sure

the PT light eventually went out before I got on the highway and the drive felt fine

could this be a result of rust or cold weather? I don't want to accidentally destroy my transfer case because it failed to switch out of PT . . .
would it be better to leave it in Full Time?
will I get better mileage in 2WD?

 

The delay can be many things. The cold can cause it cause alot of the T-cases indicate teh dash lights by use of a vacum switch..

 

Yes, add mudd to the list....

Depends, Full time will give you better handling in turns, but only if you are accelerating through them

Yes you will get better mileage in 2WD

 

mine sticks so i put it in reverse, neutral, than drive and start going in 2wd the light usually goes off after a few seconds but just make a u-turn and see..