Hi all, well my topic says it all. I smell coolant inside the cab when the heater is on, I inspected the core, no leaks and the floor is nice and dry. Why would I be smelling coolant? I also notice that the system is always blowing a slight amount of cold or hot air depending on the temp I set it at, if I switch it to the hot setting without turning the blower on, I smell coolant. Any thoughts? Should I still look at the core? I dont have anything wet on the floor.