My '99 has started popping out of 4WD under torque. This puts a serious crimp in my firewood cutting business. Vacuum measures 19 at the front axle. I replaced the switch at the axle and then the actuator. Still same problem. I've been told some of the new actuators are defective, so I'll exchange for a new one on Monday. Is there anything else I should look for or check?
Ben
Ben