let it idle rad cap off till the fans come on. when the fans come on your temp is like 212, the t stat is wide open. before the fans come on the rad may burp and take some more coolant, this is the t stat opening for a few seconds till cool coolant hits it and it shuts again.
when the fans are on open the bleeder screw, if coolant comes out your all set. top off the rad cap it. run it around for a little drive to make sure its not gonna over heat.
next morning open the rad cap check the level, it should be full, if its a few inches low, fill it up, cap it, check it the next morning again, it should be full still.
fill your over flow bottle to the cold line when the car is cold.