front of the radiator can plug up with debris, bugs, cotton from driving. take off the radiator upper retention plate, and look in between the radiator and the AC condenser. Blow out with pressurized air. Other than that, you could have an air bubble in the cooling system. Check all your fluids -- make sure oil pump is working check electric fan if equipped. (daddmac) Check all your fluids -- make sure oil pump is working check electric fan if equipped. (daddmac)
Check the water pump
you might want to check for a blown head gasket or a cracked head or block. espically if it loosing water out of the radiator with out leaking on the ground.
check your fan clutch if its weak it will overheat
more than likely you need a new radiator for it, when you install it back flush the engine.
water pump
If your radiator isnt leaking and car is having a over heating problem and coolant spewing out. Chances are your thermostat needs replaced. possible the radiator needs to be flushed. But more likley its thermostat
The radiator may have debris that needs to be flushed out.
did you use the right anti-freeze or you may have a bad fan/fan switch
change your thermostat.
have you flushed your radiator or changed the thermostat it could be stuck
My guess is the head gasket, have same problem. Nightmare
cooling system needs flushed out and a new thermostat installed, also if the radiator is still original it probably needs replaced or rodded out.