Mechanics

NO POWER AT THE FUEL PUMP

1998 Ford Windstar

Electrical problem
1998 Ford Windstar V6 Front Wheel Drive Automatic 100000 miles

I'm not getting power to the fuel pump, I have a couple questions actually, what are the four wires going to the pump for? I'm assuming the 2 darker wires are grounds, as I'm not getting power to them and the bigger of the 2 lighter colored wires has no power either. The thin wire has less than 4 volts, guessing this is a remote control wire. Would this be right? The thinker of the 2 lighter colored wires has no power going to it, I assume that this is the 12 volt power wire, would I be assuming to much when I guess this? Is the pump a 12 volt pump?
I checked the fuel cutoff button, it is in the down position. Haven't checked the power to it yet.
I did check the power at the fuse and relay under the hood, and there IS power there.
If I do find power at the fuel cutoff where do I go from there? If I don't?
Also just to keep things clear, I tried cycling the key while checking the the power at the fuel pump, and still got nothing. Also I have the fuel line disconnected at the fuel filter, its directed into a bucket, so I know if it does start pumping. Nothing yet.
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Justchad
December 4, 2007.



You got 2secs to look for power at the inertia cut switch at dark green and yellow wire-do you have it? Is so-either you test the switch or substitute it then check for power at pink and black wire at pump connector.

No power at the switch take it back to the relay and computer. At the relay you gonna have power there at all times on the red wire. And when you turn key to start you should have power at the dark green and yellow.

NOTE: The computer grounds the fuel pump relay then power is transfered from there to inertia switch then pump. If the computer doesn't ground the relay you know what that means.

Rasmataz
Dec 4, 2007.