I have a suspected heater core issue, if interested the thread is here
viewtopic.php?f=88&t=88868.
Problem is my back up 1997 Jeep Grand Cherokee started leaking brake fluid today through a rusted line so I may have to drive my Liberty. I was trying to figure out if coolant always flows through the core or just when you call for heat. Looking through my novice eyes it seems the flow is constant judging by the hoses. If that is the case, would it be wise to temporarily couple the inlet and outlet hoses with a barb fitting and hose clamps?
I love my Jeeps but when it rains it pours.