With the weather getting colder I have noticed that the heat in my 02 WJ isn't as hot as it should be. It isn't uncomfortably cold, its just not HOT like the type of heat that will warm up your interior in the morning.
I am worried it could be the heater core, but I have no other symptoms of overheating/ coolant loss. My coolant level is fine, temp runs and idles just fine, no leaking to the interior, no smell or moisture present either.
I have the single zone heating option, no dual zone climate. I am unsure if I have the infamous bled door issue. I have never owned a vehicle that used them.
The only other very obvious sign I can think of is that I can hear water circulating when I start my Jeep. It's a noticeable sound of water or fluid coming from within the dash. I only started to hear it within the last month or so. And just to clarify I really have no "real" modifications to my Jeep. Just drive it as a realiable DD.
I think I've covered most of my basis. I'm hoping someone has any input.