4WD Low won't stay on
2005 Silverado 4WD low won't stay on. When I put it in low it blinks and goes
back to 4 High. Any suggestions?
This can be caused by a couple of things, possibly the transfer case shift motor has an internal failure in the selector position sensor, an internal transfer case problem. If your up to it you can remove the shift motor and manually try shifting the transfer case into 4LO, if it goes in and works properly then you know the shift motor has the problem, if it won’t shift into 4LO manually then you have a transfer case problem.