Electric fuel pump question

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Codypicz24

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newberg oregon
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Cody
Truck Year
1985
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c20 1985
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350
Hey so whenever I almost get home my electric fuel pump gets insanely loud making a thumping sound, and the fuel filter gets low is there any cause for this I will provide pictures and sometimes it will die because lack of fuel
 

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MarineOne

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Western New York
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David
Truck Year
1986
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K25
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454
Only when getting close to home?
What kind of electronic pump? Intank ,inline pusher,inline puller, inline diaphragm"click clack"?
 

Buck69

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Northern British Columbia
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John
Truck Year
1986
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D30 CUCV
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6.2 (removed)
First thing I would check, is to see if there is a negative pressure building in the fuel tank.
Open the filler cap to the tank when it happens and listen for a hissing sound. Could be a restricted tank vent.
Next, I would be questioning the fuel pump itself or a plugged suction screen in the tank.
 

born2Run83

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West Texas
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Justin
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1983
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GMC - C1500
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5.3L LM7
There might be an issue with the pick up line or the unit going down into the tank itself. Removed the pickup line and source it into an external bucket of fuel to bypass the tank and see if the problem persists..
 

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