diesel mechanic needed to remove water from fuel line of a 1992 Chevy C-2500 Diesel work truck (could be another issue- like the fuel pump). Maybe change the fuel filter? Also have a 2002 Isuzu Diesel 5.4 with a clogged primer pump. doesn't seem to be pumping fuel. ASAP. in Potomac Md, 3 mi. off 495 near Great Falls, Maryland.