99 7.3 have had alot of problems with the truck stalling and dying. i drop the tank each time and clean the fine screened filters in tank and put it back together and it works for a few weeks then does it again. the last time i even took a shop vac and suckked everything from the fuel tank and it is acting up again tonight. has anyone ever removed the 2 filters from the sending unit in the tank? is this a bad idea or is there any way to fix this problem or any additive to put in tank to clean it ?