My 1993 Ford Explorer seems to be run...

Is the engine overheating? or running too hot? If it is the engine itself, then i would have to say it is most likely a problem with your cooling system, it may be the thermostat is stuck or has gone bad, start the vehicle, and get it warming up, once it is warmed up carefuly feel the radiator hose that goes into the thermostat houseing, and leaveing the thermostat houseing, if it is not warm on both hoses, then you have a stuck thermostat, if it is warm on both hoses, then you need to check to see if you have a collapsed hose somewhere, if not, then it is something more serious, also check your oil to make sure it is brown or black in color, if it is milky color then you have a blown head gasket, or a cracked block.........so you realy need to go over the cooling system real good and eliminate one thing at a time till you find the exact cause...........hope this helps. if you have more information that may help me find your problem, hit me back...............