over filling any fluid is a no no. you get cavtating or air bubbie,s in pumps and in ten minutes the pump is done never over fill any fluids
ford are harder to get air out of pumps they though they over fill it and if god was with them the iar would leave the pump and all is well
some times you need to use a vacuum hand pump with special cap to remove air or lift front of car high on jack and leave seat over night and the iar will raise to top of pump by itself. some ford,s you have to have the wheels off the grounds as you turn the steering whell side to side to help remove the air. they did something wrong. question did your brother in law do this work? if you got the pump from advance auto take it back. if your brother in law did the work make sure he has the proper pully removing tool or you will belt problems. if pully is bent.