follow the line from the gas tank. but sometimes the filter is in the tank.. take the fuel pressure it should remain constant. you can install a guage inside permant and you will be able to predict when the pump is starting to go bad..http://www.glowshiftdirect.com/index.asp?PageAction=VIEWCATS&Category=70&OVRAW=fuel%20pressure%20gauges&OVKEY=fuel%20pressure%20gauge&OVMTC=standard&OVADID=13370387021&OVKWID=138449431521 thease guages are easy to hook up and you will be happy once you install it ok..