I might as well ask...
Mine sometimes makes a big "crunch" sound when I go from 4LO to 2HI... it pretty much will do it unless I'm on a perfectly flat surface, and in Neutral.
For some reason, I have to be in Park to put it in 4LO (truck has the slushbox). I can't be in Park to put it back in 2HI though, it has to be Neutral. It just won't get in otherwise. Sometimes IIRC it even won't leave 4LO if the truck's weight is resting on the tranny's parking pin. I have to be on a flat surface and then it behaves much better (but still does "crunch" sometimes).
Is that normal? I guess not. And what's the normal procedure for operating the transfer case on an automatic truck? Right now I've found through trial-and-error that the best is to be in Park to go to 4LO, and in Neutral to come back from 4LO, and Neutral as well for switching between 2HI and 4HI. That seems weird...
This is my first 4x4 truck that hasn't got a manual tranny... so please forgive me for sounding stupid, even though the thread's meant for that.
Edited to add: 1995 K1500 6.5TD 4L80-E, so NP241 T-case.
Mine sometimes makes a big "crunch" sound when I go from 4LO to 2HI... it pretty much will do it unless I'm on a perfectly flat surface, and in Neutral.
For some reason, I have to be in Park to put it in 4LO (truck has the slushbox). I can't be in Park to put it back in 2HI though, it has to be Neutral. It just won't get in otherwise. Sometimes IIRC it even won't leave 4LO if the truck's weight is resting on the tranny's parking pin. I have to be on a flat surface and then it behaves much better (but still does "crunch" sometimes).
Is that normal? I guess not. And what's the normal procedure for operating the transfer case on an automatic truck? Right now I've found through trial-and-error that the best is to be in Park to go to 4LO, and in Neutral to come back from 4LO, and Neutral as well for switching between 2HI and 4HI. That seems weird...
This is my first 4x4 truck that hasn't got a manual tranny... so please forgive me for sounding stupid, even though the thread's meant for that.
Edited to add: 1995 K1500 6.5TD 4L80-E, so NP241 T-case.