- Jan 25, 2012
- 525
Looking for some clarity on how the Auto/AWD system works in our rigs. I know it has a bad rap so I'm looking for more details why. As I under stand it while in Auto/AWD there's very little (maybe 5%) power sent to the front axle. Upon sensing slip there's a set of clutches in the transfer case that will gradually engage transferring more power to the front axle, than releasing as traction is regained.
Questions:
1) So these clutches "wear out"? is there any way to test how worn they are? what happens if they totally wear out?
2) are these same clutches used while the 4HI is engaged?
3) how does this Auto/AWD differ from something like the AWD in the Acadia?
4) do we have any records of members who have damaged their transfer case by using Auto/AWD a lot?
I've heard all the usual comments, AWD is just for the wimps afraid to put it 4HI but I do find a use for it. Example; we have currently have a very thin dusting of greasy snow on the roads. Not really enough to justify 4HI and not sure it would provide enough slip around tight corners. Taking a left at the lights in 2wd the traction control kicks in a leaves me feeling helpless with out power. Turn TC off and I'm doing donuts. The Auto/AWD gives me that extra traction just when I need it but I don't have to worry about clicking in and out of 4HI.
Can someone shed some light on the subject for me.
Questions:
1) So these clutches "wear out"? is there any way to test how worn they are? what happens if they totally wear out?
2) are these same clutches used while the 4HI is engaged?
3) how does this Auto/AWD differ from something like the AWD in the Acadia?
4) do we have any records of members who have damaged their transfer case by using Auto/AWD a lot?
I've heard all the usual comments, AWD is just for the wimps afraid to put it 4HI but I do find a use for it. Example; we have currently have a very thin dusting of greasy snow on the roads. Not really enough to justify 4HI and not sure it would provide enough slip around tight corners. Taking a left at the lights in 2wd the traction control kicks in a leaves me feeling helpless with out power. Turn TC off and I'm doing donuts. The Auto/AWD gives me that extra traction just when I need it but I don't have to worry about clicking in and out of 4HI.
Can someone shed some light on the subject for me.