the dreaded fuel pump
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the dreaded fuel pump
Starting a new thread because I seriously need help.. 1988,f-superduty.. 7.5 ..Fuel pumps not working.. Found a problem with the ground on EEC. Made everything work.. Parked for a couple weeks..now nothing.. All fusable links are good...relays are new.. Grounds all seem to be good.. Grounding pin 6 on obd test port will not bypass fuel system .. The shut off switch has no power...but both pumps have 12 volts.. Fiddling with wires and probing everything related made pumps come on briefly.. 2-3 seconds...now nothing.. Wire nightmare and can't find the culprit...any help would be appreciated
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