have had van 3.5 years, replaced 4 fuel pumps, is there a know issue ?

how do I check? I know there is no return to tank, but don't know if there should be?

There is a fitting usually on the pass side of the of the fuel rail.

appears to be leading into intake, a throttle body injection? and yes pulled fuel line, at fitting at rear of engine, appears to be clean gas, nothing out of the return line, but don't know if there should be?

It's not throttle body, the 8th digit on the vin# should be an 'R'. Multi port, injectors are under the rectangle plug. Try to spray some good carb cleaner into the throttle and see if it trys to start to be sure if it is fuel related. May be another issue, no known issues with pumps except the brand of pump being used. Dirty wire connections could cause a voltage issue to the pump causing premature failure. Let me know if this works.

ok went got some carb cleaner, motor tries to fire up. noticed reviews online, all my fuel pumps have been airtex, put one in about 2 weeks ago the fuel pump doesn't sound right, and line has fuel but not much pressure, should I order a Delphi fuel pump or a different brand?

Have had problems with airtex, called the factory before and they paid me back. Try a Delphi, would be better hopefully last longer. Make sure your fuel tank is cleaned as well, check your fuel filter often for junk from wherever you get your gas, their tanks could be giving it to you.

ordered a Delphi, will be in Friday, thanks for help, will post yea or nay when I get it installed.

Hope it's great