1992 dodge caravan 275,000 miles. It runs great it has been well maintained forever, The radiator is smoking and im not sure why it takes about 15 mins and its not overheating and its not leaking coolant but it smells like coolant is burning when I smell the smoke. I cant figure it out. The fan came on when I was watching it last time and the water pump seems fine ( I squeezed the upper hose till I felt a rush of coolant flow through). The radiator is full and I just dont understand why its smoking and not overheating. The radiator feels very hot but all it does is smoke it doesnt overheat.