I bought a Nissan Mistral year 1995 and this week it has already left me twice in places of which I have not been able to leave if it is not with another van by pulling, the truth is that never imagined that the front traction did not work but the rear wheels do all the work and the front nothing, how to do so that the front traction works ... It will be some fuse, or simply already something more serious? Tractions (4h-4L) and nothing ..... Help My ... !!!