Recently the vehicle would jolt, moves awfully with gear noise, refuses to upshift, and binds on turns and flashes the "4wdhi- low and O/D" (overdrive.) Here's what happen.
When the car develops the symptoms I find and replace a blown cigarette lighter fuse. I remove an actuator motor and two speed sensors from transfer case for a test and pass, however, one of the sensor had magnetically attracted a buildup of metallic particles. I clean and install them and the symptom is gone. Was it the blown fuse??
Thanks.