I posted here about brake failures on all the 2004 E150's at my work. There was someone on this site that was interested on the results, so here it is. First, Ford couldn't find any problems with the brakes on the whole fleet. Everything to them was normal. I am beginning to hate that word when I am at the dealership. Ford decided to change all of the master cylinders and brake fluid on the fleet. So to anyone who owns an E150, I hope this will help.