Where is the fuel filter located on a 2004 Chevy Express Van?

the 2004 1 ton Chevy express does not have a fuel filter, as well as many new trucks. stop looking. i spent the time looking until i asked the gm dealer. they informed me that there is no fuel filter on this van. they don't even list a part for it, even though the owner's manual does. the black box in front of the fuel tank is the evap cannister, not the filter. not having a filter is sure to lead to fuel problems such as plugged injectors, but...?