Have it scanned for codes. It needs to be both hard and soft codes.
I will also need to know what model transfer case and which Silverado you have; 1500 or 2500
Transfer case models:
NVG 149-NP3
NVG 246-NP8
NVG 261-NP2
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Wednesday, September 2nd, 2020 AT 10:34 AM