2004 Sierra, auto, 4x4 shift on floor hump.
Is it normal for the shift from 2 wd to 4 wd high to make a grinding noise sometime when its cold outside? GM says I can "shift on the fly"at some reasonable speed, but I have been shifting from a dead stop for fear of trashing the tranny. I thought I could shift with the truck moving, thus the "shift on the fly" terminology. Other than that the tranny drive is fine.
have the same problem?
Saturday, November 3rd, 2007 AT 3:46 PM