Check for extra white color in the exhaust,could be a ruptured head-gasket.
check your water pump
The radiator cap might need replacing.
No. The only times the radiator would leak is if it was damaged, defective, or corroded.
a hole in the radiator
if it is losing it thru the overflow pipe you need a new radiator cap
The radiator may be plugged. Take it to a radiator shop.
The radiator will leak, Its function is to hold water in a way as to cool it for the engine. So if it leaks, its busted.
You replace the radiator
condensation OR blown head gasket. Is it losing water in the radiator? If so, check the compression. from condensation from setting overnight,or a cracked head or blown head gasket if U are losing water from the radiator.I no water loss U probably have a very tight exhaust system that nas no leaks-& that's OK.
If your Ford Aerostar is overheating and losing water, it may be a bad radiator. You need to take your car in to get serviced.
Fill Radiator. Start Vehicle Check For Leaks, Find Area Of Leak If Any. Resumbit With More Information. Or Have Radiator Shop Do A Pressure Test On The System .
check the heater core stopped up radiator