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Old 03-24-2012, 11:20 AM   #1
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Default FPDM, no power

2006 SCrew, 2wd, 5.4
Last week, truck died on the freeway, low fuel rail pressure. Had it towed home.
Having replaced the FPDM in January, I figured that the pump had died (100k), so I replaced the pump module. Fuel filter was replaced in January, less than 1000 miles since.
Still, no start. Cranks, has spark.
Checked inertia switch circuit, OK.
Checking at FPDM, no power. #9 fuse OK, can't find any other fuses or relays for the fuel system.
What is the wiring schematic for the FPDM module. Appears to be five or six pins, don't have power to any of them with key in run position.
What am I missing?

Thanks
ken
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Old 03-24-2012, 02:40 PM   #2
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Default FPDM, no power

Update,
Found the main harness connector (outside of frame, under drivers door) totaly corroded. The Fuel pump feed wire (white) fell out of the connector with green scuss all over it. Ended up taking the connector out and hard wiring the harness together. Truck runs now.
Ken
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Old 03-24-2012, 04:17 PM   #3
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Nice find! Good to know!
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Old 03-24-2012, 05:45 PM   #4
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Quote:
Originally Posted by lariatboy View Post
Nice find! Good to know!
Yes! Thanks for posting your own find. It will go along way.
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Old 03-24-2012, 09:04 PM   #5
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hahaha, as I was reading that I was going to suggest that dumb connector! ive had it cause a few problems now, I think that plastic cover over it holds crap in there
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Old 03-24-2012, 11:21 PM   #6
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I agree, last fuel filter change I removed that splash guard and it was so full of gravel and dirt that it looked like someone had troweled it in there. Needs a piece over the top of it.
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Old 03-25-2012, 02:00 AM   #7
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Good find. So did Ford completely screw the pooch when it came to the FPDM?
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Old 03-25-2012, 02:00 AM
 
 
 
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