93 gc w/4.0 a/t 4wd.
died out while siting at idle after replacing f/p 2 mo. prior.
ordered new pump and installed, no start. replaced pump due to running for a breif few seconds and then not at all.
got another pump!@#W$$^#%, plugged into connector and ran for a few seconds, same result. Tested for power at f/p connector, none present except for level sender. Ohmed crank sensor, excessive, replaced, still no power, rechecked new sensor, no resistance. 8 volts to sensor. Swapped relays around. nada. Jumpered fuel pump at relay, wal la!! power at fuel pump builds 42psi, No Start. still unable to get power w/o jumper, Cycled door switch to deactivate security even though no security light flashing......no CEL comes on cluster.????????

Thanks jared