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Thread: Service 4wd
11-24-2013, 03:17 PM #21
I see that you are are new member, welcome! I understand that you are seeking advice from your fellow forum members. I might not be able to give you any technical advice but I would like to look into this concern for you. Please private message me if I can be of any assistance.
GM Customer Care
11-25-2013, 10:10 AM #22
Ok folks, I have one more question. I know I can go from 2wd to auto 4wd while moving down the road. Can I do the same thing with 4hi? Obviously 4lo is a big happen not gonna while moving.Chuckie!!!
11-25-2013, 03:57 PM #23
you can go into 4wd and 2wd when driving with High gear selection. you must not go into 4wd LOW when moving more than at a crawl speed..
11-26-2013, 10:27 PM #24
11-27-2013, 09:25 AM #25
4wd low is for pulling a boat out a steep ramp or pulling a stuck vehicle out from the ditch/snow bank...
no reason to engage at a any speed. the manual does state that with the vehicle creeping along the 4wd low will engage possibly a little easier. also turning the wheels sharply in this position on solid dry pavement is not a good idea...
12-01-2013, 12:49 PM #26
- Join Date
- Nov 2013
- saginaw mi
ok i checked all fuses and none were blown. any ideas?
12-01-2013, 04:57 PM #27
I would check the transfercase fluid for level and condition. should be blue color. with the fuses good checked with meter then go to have the drivetrain codes pulled with a GM code tool. post the codes here .
if the encoder motor is stuck or reporting a improper position it will not go into 4wd.. also could be fuses/wires /connectors broken damaged
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