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Ford is the only one I know of that uses a cutoff switch. GM use a relay usually in the under hood fuse box. Try opening gas cap & have someone put their ear to it, turn key on without starting, they should hear fuel pump hum for a few seconds, meaning it's working. If not check for blown fuse or bad relay, if you find something wrong with fuse or relay, replace it, & do the test again, if still no hum at the pump, it's likely pump is bad or you have a bad connection or bad ground.
What motor? Fuse is located in a different place on the 4cyl. vs. the V6. The four cylinder fuse is in the fuse box under the dash. The V6 engine the fuse is in a in line fuse holder next to the fuel pump relay under the hood, diverside rear at the firewall, there may be a plastic cover on the relay and fuse.
check your grounds & the fuel pump connections.the ground should run to the right rear of the motor. look at the wires back to the motor on the frame for anything that may have nicked a wire or a rub thru. You have a short and i belive it shut down if you hit a bump. loose or fraid wire some place. Best of luck & keep us posted on your fix.