i have a 2002 Explorer that I’m having 4x4 issues with. First my hall sensors were bad I figured that out and replaced them. Now my 4x4 lights do not blink like they use to they work correctly when I hit four high the light comes on but that’s it. Nothing else happens I hear no clicking from the module nor do I hear noise like the hubs locking. If I shift to four low the module clicks I hear several noises under me and I can tell the tranny changed gears. If I floor it in the stones in four low it feels like all four wheels grab. Doing the same in four high only the back tires spin. I don’t know where to start with it this is my first Ford and only my second four wheel drive but the snow is gonna fall any day here in Pennsylvania so I’d like to figure it out. Thank you in advance