- Mar 14, 2007
2002 S10 4x4 ZR-2 4.3 144,000 miles. This morning I backed out of the garage and went to enter the street and I could feel the familiar pull of 4WD. Weird thing is, I haven’t put it in 4 wheel since winter. I tried pushing the button to go back to 2 wheel and nothing happens. No light blink. Nothing. Stays in 4Hi. I’m guessing possibly encoder motor?