So it all started when I after buying the truck used I switched it into 4hi when i went to switch it back my svs 4wd light came on and on the selector switch the 4 hi light is blinking. When I press 2wd I can he the encoder motor and actuators moving then goes back to 4 hi. I have replaced the encoder motor, actuator and checked all grounds and they are good.... does anyone have some tips,tricka,hints?

 

Switch is a known issue with these.