i friend of mine is having some injection pump problems . here is what he has . its a 99 with 144,00 , stick , edge ez and he is on his 3rd pump in a little more than a year . ever time he puts a i. p. he also puts a new lift pump . the last 2 came from diesel fuel injection service of st louis . the first they said was due to water in the fuel . but he dropped the tank cleaned it and this pump is doing the same thing after 6 months . does anyone have any ideas . are there some better higher output pumps out . this a work truck he pulls some heavy loads so nothing super hot . thanks for all the help .