Question about 1998 Ford Windstar
I cant figure out why my fuel pump only gets power when i run a hard wire from the battery to the relay i have tested the relays and fuses
Did you see if the inertia switch was triggered.
The emergency fuel pump cutoff switch, also known as the inertia switch, cuts power to the fuel pump in the event of an accident - even a slow speed one - any sudden "jolt" can trigger the switch.
The switch is located inside the jack storage compartment found at the right rear of the vehicle. Remove the cover and it is behind the thin "foam" covering inside the compartment towards the rear of the vehicle.
It has a red button on the top of the switch, make sure the button is fully depressed. If it is and the vehicle still won't start check fuel pressure at the rail (there is a port on the rail which is under the hood on the engine) with a fuel pressure gauge. If the pressure is ok (about 30 psi) the problem is most likely not fuel system related.
Good luck and hope this helps.
Posted on May 25, 2009
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Posted on Jan 02, 2017
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This relay is located behind the dashboard's lower cover. It consists of two individual relays. One is energized whenever the ignition is ON , thus supplying battery voltage to the Powertrain Control Module (PCM). This relay also supplies voltage to the fuel injectors, and power to the second relay. The second relay is energized for two seconds, when the engine is turned ON , to power the fuel pump.
See Figure 1
Fig. Fig. 2: PGM-FI relay terminal numbers
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