This same problem is just happened to me. I will try the reverse trick but is there anyway to illiminate whether it is the dash switch or solenoid, or encoder motor, I am handy with a dmm. just need to know what to check, and wiring diagrams are always wonderful to have, :chair:
hey guys, here it is. 2007 gmc yukon 5.3 4wd. it has randomly gone into four low with out any movement of the switch. the lights blink when i move the switch from 2wheel to 4 wheel, and i can hear something moving (or attempting to move) from under the vehicle. From my research so far i am...
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