1998 explorer overheating

[donmiller5]

I have replaced the radiator, thermostat and hoses. after about 20 miles of driving it still over heats, if I turn on the heater it goes back down. I checked and replaced the oil so I do not believe its a head gasket or cracked block. Any insight would be deeply appreciated. Thanks, Don

 

[drdoom]

Which engine don? Also I hear a lot on here about air pockets following cooling system work, and a certain fill and or burping procedure. Also you may want to peek in the rad and see if you have circulation by the water pump.