Originally Posted by ISP James
the heater core is how your heat works.... what happens is when you adjust your cold/hot knob, the hot coolant goes through it and the blower motor blows across and then heat comes out.
That would probably explain why when i drive to work after bout a half hour the heat stops working and it takes an extra id say 5-10 minutes before the heat actually kicks in again. At the time the heat gives out is about the time when i start to smell coolant.