Power to the fuel pump but fuel pump not working

1999 LINCOLN NAVIGATOR
265,000 MILES • 5.4L • V8 • AWD • AUTOMATIC
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OWENHENNINGS
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When I turn the key to start it the relays click and the engine turns over. I have checked the power to the fuel pump and the holes are when I checked it about 10. I have checked the relays I replaced by 10 relays and just do not know where to go from here I had it running about a month ago and then the battery went bad so I put a new battery in and now I have no fuel pump everything else works but the fuel pump not kicking in.
Aug 24, 2016 at 6:08 AM
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WRENCHTECH
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Have you verified power arriving at the fuel pump?

have you verified ground at the fuel pump?
Aug 24, 2016 at 6:33 AM
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OWENHENNINGS
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Yes, I have power to the pump what stumps me is all the relays clicking never herd that before.
Aug 24, 2016 at 6:34 AM
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OWENHENNINGS
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I did put a new ignition switch in and it would not even crank over with the old switch in and it will crank over.
Aug 24, 2016 at 6:44 AM
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WRENCHTECH
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Okay, you are all over the board here. I do not how the ignition switch came into a fuel pressure problem. I hope it was not the key and tumbler that you changed because that will require programming.
If you have a fuel pump issue, concentrate on that.
Aug 24, 2016 at 6:49 AM
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OWENHENNINGS
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I tested the power back to their using the the wire ground that is in the same harness but I do think I am going to go home and check the connection for the ground on the intake manifold. I did have to replace that, but I am not sure if it is getting good contact with the firewall.
Aug 24, 2016 at 6:50 AM
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OWENHENNINGS
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The lovely Advance Auto Parts people came up with the idea that it could be the ignition that is causing the problem, but obviously it is not.
Aug 24, 2016 at 6:51 AM
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WRENCHTECH
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What does the engine ground have to do with a fuel pump? If you do not have a good bit of electrical knowledge and the ability to read a wiring diagram, you are going to need local help with this.
Aug 24, 2016 at 6:54 AM
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WRENCHTECH
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The people at Advance are not mechanics. They are part time parts sales people that like to make believe they are mechanics.
Aug 24, 2016 at 6:55 AM
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OWENHENNINGS
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Okay,; last question; am I able to make my own power supply to see if the pump is still active if pump will work?
Aug 24, 2016 at 6:57 AM
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WRENCHTECH
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These tests are possible, but I do not know if you are the guy to attempt this. Applying power to the wrong wire can result in a lot of damage. https://www.2carpros.com/images/external/219579047.gif
Aug 24, 2016 at 7:03 AM
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OWENHENNINGS
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OK update took fuel tank out tested pump and it shot fluid out what is the module with the 3 small wires could that cause it not to send fluid ? I can't find that part

Aug 24, 2016 at 5:36 PM
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WRENCHTECH
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I have no idea what you are looking for. That test you did doesn't prove much of anything. It needed to be done while still in the car with a fuel pressure gauge hooked up.
Aug 24, 2016 at 5:40 PM
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OWENHENNINGS
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That's the whole problem no pumping until I took it out but would the pump still pump if the piece that twists onto the top of the fuel pump
Aug 24, 2016 at 5:58 PM
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RENEE L
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Yes it would it is externally grounded.
Aug 30, 2016 at 10:39 AM
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OHENNINGS
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Not external ground all in the wire harness
Aug 31, 2016 at 1:01 PM
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RENEE L
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It is a black wire, here is a diagram to help you.
Image (Click to enlarge)
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Aug 31, 2016 at 2:51 PM