Hey guys, been reading through a bunch of posts and articles about front wheels not engaging when 4Hi is selected and what I'm thinking might be that the front axle disconnect might need rebuilding. If anyone could offer me advice or any knowledge on this matter I'd appreciate it. What I've done so far is confirm that the encoder motor on the transfer case is working, because when I put the switch in 4hi I cannot spin the driveshaft. However, the front wheels will spin freely without the driveshaft spinning. Went and put a known working front axle disconnect actuator from a GMC Envoy on and can hear it and took it off while plugged in and could see it moving when 4hi is selected. When I put the switch into 4Lo the rear end is at 4lo speeds but again, no movement at the front wheels. I would appreciate it if anyone else has an opinion on what it might be
Edited to add: no service 4wd lights on and when selecting 4hi the switch will blink, you can hear the whirring and the motor and the light will stay solid on 4hi but not be driving the front wheels
Edited to add: no service 4wd lights on and when selecting 4hi the switch will blink, you can hear the whirring and the motor and the light will stay solid on 4hi but not be driving the front wheels
Last edited: