steering

All the suspension bushings and steering linkages need to checked for play. also look at the wheel bearings to see if they have play. if the Explorer has higher mileage and all the bushings and tie rod ends are all OK the steering box might be worn and need a little adjustment but not to much or it will bind. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info .There is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You get a one year subscription to year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual. http://bit.ly/alldata_repair_manuals or try http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.