I'm in the Northeast and we had about 6 inches of snow the other day.
I wasnt going out that day, so I shoveled the driveway and moved my
truck out of the way. I put it in 4WD to move it down the driveway and
back up, when I was done. I may have left it in 4WD over night in 15
degree ( F ) weather.
This morning on drive to work 2WD, fine. 15 mins on the road, I take
an exit off the highway and the Transfer Case starts making an awful
rumbling / rapping. The noise is directly proportional to how fast I
am going. Switching to 4 HI or 4 Low and the noise goes away. It is
2WD that makes the noise.
I wonder if this has to do with TSB 99-06-04-056 [ Transfer Case -
Binding or Shuddering ]. I put a call into a dealership to get some
more info on this TSB. Was wondering if anyone had a similiar
experience or could tell me about the TSB in general.