7.3 Fuel Lift pump - PowerStrokeNation : Ford Powerstroke Diesel Forum

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Old 11-19-2011, 06:22 PM
PSN Newb
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7.3 Fuel Lift pump

Went to start the '96 this morning and turns over but won't fire. Last several weeks ago I had a small fuel leak showing up in the valley. A it is around 10 degrees here. Are there any tricks to diagnosing a the lift pump in the valley?
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Old 11-19-2011, 07:08 PM
Hood Rich
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Re: 7.3 Fuel Lift pump

hook a ful pressure gauge to the port on side of fuel bowl
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Old 11-19-2011, 09:45 PM
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Re: 7.3 Fuel Lift pump

Need more info.

What's it doing when its not starting?

Btw you posted in the wrong section.
02 f250
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Old 11-21-2011, 05:35 PM
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Re: 7.3 Fuel Lift pump

Pulled the filter out and gray and hazy but didn't look like typical gelling. When I turned it over and then opened the bowl it was pressurized but even after doing it again the pump didn't fill it. Our fuel here in Minnesota has 15% biodiesel so that is why I am still thinking maybe geling. When the lift pump fails does it go cold turkey or just reduced pressure explaining air pressure in bowl and no fuel?
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