My 97 safari, i replaced the fue; pump 1 year ago with a new filter, put a new filter on about 1 month ago, been working fine, a couple weeks ago it stumbled on starting on a cool evening but finally kicked on, but i thought thats weird, ok for a couple more weeks then one morning a no go, just cranked, felt like the pump again, put a pressure gauge on it and got 60 lbs. the pump comes on for 2 seconds before start and is energized while cranking, i think its ok, changed the pump relay for good measure to no avail.one time i did coax it to start again and after i did it started easily till the next morning , then back to the same thing, im thinking the injector spider, but dont want to dive in to that without knowing for sure, is there something im overlooking or a way i can narrow it down further