WHAT SURFACE are you driving on,...?????
ICE , pavement?
part time, full time or AWD? which is it.
Autotack????
open diffs?
some AWD have a center diff, lock , is that on? (never on pavemnt)
a chevy Jeep Grand cherokee??????
is this a 4wd question?
are you driving on pavement , ICE, snow or dirt.
my wild guess, is this is Cebby. and is not a Jeep
and is PART TIME 4WD and is not AWD
if you drive on pavement that is not covered in ice or snow
that is wrong, the manual explains that.
part time 4wd only works on ice or dirt.
more simply,. 1 tire must slip, that is be on something like ICE or dirt .
Part time 4wd has no center differentail
and if you drive on pavement (dry) it will windup the drive line
and something breaks.
so REpost what you are driving on , the world is complex
dirt,sand,snow, granite, ice, mud, ?
im guessing, here is trac-lock. discussion....
http://www.fullsizechevy.com/forum/general-discussion/technical-maintenance/504267-2002-silverado-z71-4x4-not-working.html
here are the options, then
quote:
The only 4WD options were either the
base option with a manual 4WD shifter in the floor OR the more expensive pushbutton version in the dash. The pushbutton version also provides
full-time 4WD capability, called AutoTrac. Whether the rear differential is Limited Slip or not is a separate option. Limited Slip is not available in the front axle.
end quote.
the base version is not for Dry pavement, and if you make that
mistake, the gears will be very hard to impossible to UN SHIFT
due to driveline gross wind up, just like any jeep, 4wd.
RTM.
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