Willie, On your 02 Ford Explorer: It sounds like your odometer may be electronic. First make sure your dimmer switch is on correctly. Adjust it to check. You can also tap lightly on the plastic covering the odometer. If the display comes on and goes out it could be that the instrument cluster that has gone bad. Good Luck.
〉 Answered on Jul 2nd, 2014 by Maryann Croce, Owner at Croce’s Transmission Specialists