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The fuel pump is inside the tank; the component you are looking at is most likely the evaporative emission system canister...
I have double checked, and the fuel pump on your Crown Vic police interceptor is definitely located INSIDE the fuel tank; it is the exact same ford part number as for any other crown vic.
The component you are looking at is the evaporative emission system charcoal canister assembly. it is mounted under the rear of the vehicle; on the same bracket is the canister vent solenoid assembly. That is why you see wires and fuel vapor hoses going to it.
if you refer to the illustration I have posted below, I am sure you will see that component #5 is the part you are referring to. this is NOT the fuel pump; you need to remove the fuel tank to access the fuel pump inside.