Quote:
Originally Posted by girl in need
I' m having these same problems. the service 4 wheel drive came on a few months ago and only comes on now when on long trips.... now the stabilitytrac system disabled was on. It was in 4 wheel drive so i switched it back to 2 wheel drive. is it unsafe to drive it like this?
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Hi girl in need,
Service 4x4 ligth comes up on my Yukon 2005 also. Its been flashing for few months. Now, ramdomly car shift to 4x4 by itself while driving. I'm unable to control the transmision mode pushing on the panel 2wd, 4-lo, 4-hi switches. I have been searching and reading coments about this issue. Cause of problem are many. So far, the ultimate solution I found is to go the dealership for a computer/transmission software update before replacing any part and go from there. The new software should give you the right code of what is wrong.
Possible problems are: Low transfer case fluid or insuficient lubrication due to lack of use of 4x4, the panel switch/cluster itself, the 4x4 tranfer case relay, 4x4 control motor in front axel, wiring, or encoder sensor/motor (c0327 code).
I have not seen my stability (Cory_e talks about) or traction system disable light on. So, I hope the encoder is not my problem. And all the lights on the cluster swith ligth up and flash before stoping on the 2WD, so, I hope my problem is not this switch either. And I have not changed/serviced the 4x4 fluids ever. I now have 75K miles on this Yukon.
My research shows that these repairs cost about $800.
If not repaired soon, car could engage in 4x4, and a turn on pavement could damage gears and other parts. That happends to someone I know with a Chevy Z71 Silverado pick-up truck 2003 and the repairs were $2300.!!!
Good luck