Having trouble with push button 4 wheel drive, Push 4x4 hi button all it does is flash 5 times . I hear the actuator motor in the transfer case but does not seem to engage .Could it still be the actuator ? Could it be the one in the front axle ? Do not think its the axle one since it is not engaging at the transfer case .Anyone have any ideas where i should start?
Thanks

 

What year truck? There has been several post on the early 2000 models already. With 4wd issues. My truck has the same issue.

 

Start with grounding wires under drivers door outside frame looking forward. Clean untill all have bare metal, then tighten securely. Clean all connectors on T/C, forward axle and dash switch. Had same problem but once all cleaned problems went away. Good Luck