The Bosch +4s are crap, at least in our cars. Get the motorcraft.
Originally posted by NickP:
The problem is the circular filter on the fuel pump sump. Earlier tours do not have this type of fuel pump. Ford went to a returnless system mid 99 or 98. I solved the problem on my 2000 se sport be removing the circular filter. There is still a sock type filter on the fuel pump, and the in line fuel filter for the engine. You will have to drop the tank to get at the fuel pump. Remove the pump sump from the tank and remove the circular filter. These things seem to clog every 30 to 40,000 miles.
Nick P
The problem is, the pump burns up after running with the clogged screen for a long period of time, so in many cases(such as mine) removing the screen does nothing. Also, YOU DO NOT NEED TO DROP THE TANK!!!!Check the how to section for the easy way to remove the pump. 
