Check your heater hoses, that's where the water ciruclates into the heater from the water pump.
If the coolant is more than 5 years old, it would be recommended to drain, flush and refill the coolant system with a fresh antifreeze mixture of 50% antifreeze and 50% water. This should protect the system down to -34 degrees F. A close inspection of hoses, radiator and possible replacement of the thermostat would also be recommended.
If the electric cooling fan(s) are not coming on that may be the problem.
They get old and become weak.
Bad Head Gasket. See a mechanic ASAP..
usually coolant leaks come from bad gaskets... or a bad water pump.. i would say drain the system and run water through the radiator (do NOT drive with water in the radiator, your engine will surely overheat!) and see if you can spot where the coolant is coming from... if it is coming from the engine block then you might have bad gaskets.. if not then it's the water pump.
Blown headgasket.
Cracked head or bad head gasket.
If there are lines coming from the transmission to the radiator, it has a cooler in the radiator. If there are lines from the transmission to an external heat exchanger, that would be an auxiliary cooler.
the radiator itself no but the coolant that it carries has distinct odor Any paint on the new part could smell.
Heater core would be the likely culprit here.
You would have a leak, from either the pipes to the heater matrix (radiator), or the matrix itself.
The radiator itself probably holds a half gallon. The car as a whole would hold about 2 gallons.
If you are speaking about the two small hoses, yes. That would be transmission fluid.
The right side (passenger side) would be the transmission cooler lines. The plastic radiator tank is probably cracked near or at that fitting. Replacing the 12 year old radiator would be best.
It would be............... The Napoleonic Wars
They're typically on the lower radiator hose itself. Make and model of the vehicle it's in would help.
an optical telescope