Radiator cap could be lose or wrong size
If a lower radiator hose was replaced on a 1999 Dodge Grand Caravan, but it is still leaking fluid, it could be that there is a hole in the radiator. It could also mean that there is damage to the overflow reservoir or its hoses.
If it is leaking trans fluid into the coolant it can cause overheating.
It could be leaking from a number of places. Some could be a simple fix and others not so simple. Need more info as to where it is leaking.
It is under the housing that the upper radiator hose hooks to on the engine.
It is under the housing that the upper radiator hose hooks to on the engine
It is on the bottom of the radiator but sometimes hard to get to. If it is, take the lower hose off instead.
check for coolant in system...radiator..next check for heater core leaking and verify if your thermostat is working(if it opens when engine is warmed up...hope this helps you..L
Look in the housing at the engine end of the upper radiator hose
Look in the removable housing at the engine end of the upper radiator hose
under the housing where the upper radiator hose hooks to the engine
Failed water pump, hose, radiator, gasket, freeze plug,............
Leaking heater core