While trying to fill the system the otehr day, I idled it for 15 minutes. I didn't ever see the cooling fan come on. The temp gauge did move slightly, but was always at the bottom. The heater was blowing hot air.

When I removed the top heater hose (engine off), coolant came out of the hose and the rad so I quickly put it back. I stuck a garden hose in the radiator on a slow trickle and let it run for many minutes, then capped it, ran it some more. I let it cool down and topped it off.

I don't know what else I can do to "burp" the system.

AND- what is an easy way to check that the elec fan and its relay are working?