1990 Ford Ranger 2.9 V6 5Spd auto locking hubs. When I push the button on the dash, the 4x4 indicator lites up and I can hear clicking noises from the module behind the drivers seat, but the front end won't pull. If I then push the button for 4 low, the indicator flashes for a few seconds, then goes out. is this a problem with the electric motor on the transfer case, or is there something else wrong? I don't think it could be the hubs, cause there have never been any strange noises from the front end itself. Everything worked great till I replaced the transmission.

well first problem i would check is the switch cause i have a chevy s10 zr2 and that went bad and i got a new one and it works like a charm second thing i would check thats an easy fix is the 4x4 fuse