2002 t&c 3.8. New radiator and cap and t-stat. Doesn't overheat and I don't see any leaks but now and then I get a coolant smell inside car (up to temp and heat and a/c off) and windows fog up slightly. Coolant loss is about 2 cups over a 2 week period. Oil shows no sign of water. No sign of leakage on water pump. Does this sound familiar to anyone? Thanks for any help!!

 

heater core leaking

 

I don't know if it works on heater cores but I have had 100% success in using Radweld or similar on engine, radiator and pipework leaks. Might be a quick cure or temporary sollution at this time of year.

 

I will definitely look into that. If it is the heater core, from what I hear and see, it is a bear to get out!

 

I don't suppose there is a way to test that first?

 

pressure test it look for leaks

 

Best to pressure test it when coolant is cold because when coolant heats up the metal expands and stops the leak..was a problem with big hulking mainline diesel engine cooler groups back then when the coolant ran out when engine shut down for even a day.