Been driving in the 4x4 range tonight because we got close to a foot on the white stuff. Weird thing would happen, I'd be cruising around in 4x4H then suddenly it would click and go into A4WD then back to 4x4 for a few seconds, then it would just go into and out of 4x4 for a few minutes. Doing it by it self. Anybody know whats up???

 

What 4x4 did you have it in, high or low? ANd what speeds were you driving? I remember last year we had an ice storm, no real snow, and I popped the navi into AWD and cruised at normal speeds, while others flipped into ditches, ran into one another, and spun sideways all do long. All hail that system, its much improved over years past control trac systems

 

I have asked this question here too. We have the same problem. Let us know if you find a fix.

 

I was definately driving in 4H with speeds from 25- 50 mph in 6 inches of snow. I've read up on the A4WD, but I dont really know if I should use that and what exactly it does. I did have it in A4WD once and all the light did was blink

 

AWD mode basically engages the front hubs full time and if it senses any slip in back (excluding turning), it will engage the front wheel for a second or so (4wd mode) and once front and back are at same speed it will disconnect again. This is good in wet weather or where you only occasionally have wheel slippage. When it engages the front and there is alot of slip in rear wheels, it comes in pretty hard. When I am in AWD I generally keep my foot out of it, fraid to break something but it is useful. One annoying item with AWD is once it engages and then disengages and if rear tires are still slipping, it will cycle again (engage/disengage) in and out over and over which is annoying. I suspect in 4WD mode, there is a 50mph limit (there is a 50mph limit to 4wd and awd mode being engaged). If roads are not too bad, AWD is good enough of a mode, however most other vehicles have clutches in AWD mode to engage/disengage, not a mechanical hard disconnect/connect as to push torque to front wheels and not slam the drive train. I have been looking for info on the internals of the transfer case but have not found anything on the net...GL. ..JR