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Where is the fuel pump switch on 1990 ford crown Victoria 5.8 police?

The 1990 Ford Crown Victoria (and its Police Interceptor variant) doesn't have a separate fuel pump switch. The fuel pump is controlled by the computer (Powertrain Control Module or PCM) and is activated based on various signals, including the ignition switch. There's no manual on/off switch for it like some older cars. If the fuel pump isn't working, the problem is likely within the PCM, the fuel pump relay, the wiring, the fuel pump itself, or a related sensor.
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