Dawg77
Newbie
Have a 97 Sierra 4wd push button 4wd. Problem is, it will not shift at all, 4wd light just flashes on low. When in park the encoder motor just keeps clicking even does it with the key out of the ignition. All fuses good, have tried new tccm , new encoder motor, new push button controller on dash and new acuator motor on front diff, new ecu and fluids are full. Anyone had this happen? Any ideas?