2002 Sebring lx, 2.7 cooling problems

i have replaced the thermostat as it had one with no guts in it and also the radiator cap as well. when driving it seems to overheat really fast as well as loud boiling in the filler box (overflow)

Is there any coolant leaking? Possibly a waterpump or if when you first start the car is there air bubbles coming up in the coolant resovoir. If there are bubbles before it is hot most likely a head gasket.

Check to make sure the radiator fan or fans are working.