Last night I seemed to having a problem. Got hung up on a Rock last night. So I flip the 4 wheel drive button and a friend noticed the front tires weren't driving me. So after getting winched back out I notice that when you press the 4 wheel drive button the dash indicator lights up for 4×4 and then for different lock but I don't hear the actuator operating. You just hit the switch and no sound whatsoever. Where I start looking to fix this. I got a trip in 2 weeks and need the 4 wheel drive to work. Thanks. Mike