So I got the service 4wheel drive on my DIC so I took it to the dealership they scanned it and had to replace the tccm and reflash. 4x4 worked fine for a week then the same thing happened so I took it back and now they are saying there is internal tcase problems. It's never made a pop, bang, screech, howl nothing always smooth. I'm thinkin if something were wrong internally it would be making some kind of noise. I think they are tryin to give me the shaft, what do y'all think?