On other Ford's at least it helps to raise the front of the car while burping. Oh, turn the heater on MAX also. That burps the whole thing.
And yes to the spitting out if you fill it to the top without a expansion bottle. the actual fill mark is what, an inch or two below the top on the cars that didn't have the expansion stuff. I didn't know that until recently.
If you have the cap off the radiator if the fluid looks bubbly when it is moving there is air coming from somewhere. Probably a head gasket leak if you've burped it.
Russ