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2003 Silverado 4x4 problem
I have a 2003 silverado 4x4 with manual transfer case. The other day while driving in 2hi on a slightly icy road my 4-wheel engaged (approx 70 mph). There was considerable grinding noise and after many tries the 4 wheel kept engaging while my I was set to 2-hi. My local GM dealer removed the tranfer case and haven't found any mechanical damage (they are also at a loss for words as to what happened.)
Questions:
1. What is causing my 4-wheel to engage? i am assuming that a "manual" transfer case isn't as manual as it used to be and some electronics screwed up. If so, please explain.
2. Where did I hear the grinding coming from? What else should I have them inspect for damage?
thanks,
wildman_97
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