2002 town & country overheating
2002 Town & country is overheating. Happened suddenly. Car is fine and stays at normal temperature while idle in park or neutral with foot on or off gas, but when I try to drive it after about 2 miles the temp goes up quickly. I checked radiator and when I removed cap it is not empty but the level is slightly lower so I top it off and does same thing again. I changed thermostat and no change. I do not see any puddles under vehicle either. No leaking hoses, radiator fan does come on also. What can I do next?