4wd remaining engaged??
#1
4wd remaining engaged??
Interesting thing I have noticed on 2 occasions now. We have had a lot of snow here lately, so I have been using 4wd. Hubs in auto mode.
It seems like the 4wd has remained engaged after I have switched back to 2H.
The dash lights indicate it has gone back to 2H, but if I go to make a turn, I get the front wheel hopping/binding typical of 4wd being engaged still.
If I reverse about 10 feet, the issue goes away.
Thoughts
It seems like the 4wd has remained engaged after I have switched back to 2H.
The dash lights indicate it has gone back to 2H, but if I go to make a turn, I get the front wheel hopping/binding typical of 4wd being engaged still.
If I reverse about 10 feet, the issue goes away.
Thoughts
#3
My 2011 SD would do that for the first turn or two after being switched back to 4wd. Used mine a lot and never any issues. Not saying it's not worth getting checked out, just that it happened on my other SD a lot but it went away rather quickly on its own with no reversing.
Edit : Haha me and Epic must have been typing at the same time.
Double Edit : Epic and I
Edit : Haha me and Epic must have been typing at the same time.
Double Edit : Epic and I
#4
#6
Every 4WD truck I've had has done this from time to time. If there's torque being applied, either forward or backwards in the case of engine braking, the transfer case and hubs can't disengage. Most of the time a slight application of the throttle, back off, and then on again is sufficient to get things disengaged.
#7
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#8
I have a 2016 Yukon Denali XL that this happened with twice and required the dealer to reset the transfer case computer to get it back into 2WD. They are working on a software fix but forums posts show this has been a problem for YEARS, the root cause is shutting the vehicle off in 4wd or auto when the temperature if very cold out. In my case I was driving in Auto, came out the next morning and it was stuck in 4wd even when I switched it to 2wd.
What sucked is that morning I went out I had to tow 7500 lb enclosed trailer a few hundred miles that weekend.
What sucked is that morning I went out I had to tow 7500 lb enclosed trailer a few hundred miles that weekend.
#10
Every 4WD truck I've had has done this from time to time. If there's torque being applied, either forward or backwards in the case of engine braking, the transfer case and hubs can't disengage. Most of the time a slight application of the throttle, back off, and then on again is sufficient to get things disengaged.
This! Even with the old time, manual 4X4, when using 4WD on dry ground due to rugged terrain, one might even have to back up a few feet while pushing/pulling on the transfer case shift lever to get the thing to disengage. Now things are all electronic and people flip the switch on dry/wet pavement and think it is going to pop right out with a flip of the switch......probably not going to happen, regardless of brand/make if it is a real 4X4 and not AWD. Way too many people do not understand the difference
#11
Mine has never done this. You need to understand what you are doing. Despite the system being advertised "Shift on the Fly" you are much better off making a change to 4Hi or back to 2Hi while you are rolling, foot off the gas, and going straight.
That said, it is not uncommon for this situation to occur as others have said...
That said, it is not uncommon for this situation to occur as others have said...
#12
What Troverman says above. YOu have to unload the driveline for the transfer case shift and the hubs to unlock, if turning and different binding of each wheel, the shift wont be complete. When it tells you shift in progress, lift off or coast for a half second and it will do everthing. Think of it like a manual t - case, same thing.
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