Heater core problems, perhaps...?
I have a 2000 WJ limited, 4.7 v8
I've had it for about 3 years now, the AC has never worked. Had problems with the passengers side heat, replaced blend doors and good as new.
However, there's been a constant smell of coolant coming from the vents. Windows will not defrost, and I'd say about 90% of the time there's a white "smoke" coming from the vents, even when the heat is not on. I've been thinking it's the heater core, but I've never seen any coolant leak on the passenger's side as I've read is typical with this kind of thing. Haven't noticed any obvious coolant leaks underneath the jeep either. Every once in a while I'll get a "coolant low" light on and I'll have to fill it, but it takes a while before the next time. This has been going on for a long time now. Anybody have any insight?