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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Fuel pump failure

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Old Jun 3, 2018 | 07:55 PM
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Fuel pump failure

Anybody know what can cause both fuel pumps to quit on a 91

I smacked the relay and it ran for 20 feet jumped the relay and got 20 more and drew power straight from the battery and got 20 more and it won't run I have pressure but not enough and I have spark I considered vapor lock but I know it's not really possible

quick replys would be appreciated
 
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Old Jun 3, 2018 | 08:40 PM
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From: Ar
Have you cheeked the fuel filter?
 
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Old Jun 3, 2018 | 08:55 PM
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Everything related to the fuel is fairly new the issue was the fuel injectors wouldn't work because of a loose connection
 
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Old Jun 3, 2018 | 09:10 PM
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From: Ar
Glad you found it .
 
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Old Jun 4, 2018 | 09:55 PM
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Well I seem to have another issue too

I just drove it 80 miles today and when I got into traffic it stalled twice and while not in traffic it sputtered twice both times it started up fairly quick but I did notice it immediately lost power brakes so maybe bad booster

I blamed the module and all the obvious stuff is new filter pump injectors cap rotor wires module plugs the sensor inside the distributor

I'm just going to replace the module but if anything stands out let me know
 
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Old Jun 5, 2018 | 12:19 PM
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Have you pulled any code's, might lead you to the culprit.
 
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Old Jun 5, 2018 | 02:50 PM
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86 or 96 failed fuel pump

the relay was probably out though
 
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Old Sep 12, 2018 | 02:05 PM
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The issue was the fusible link in the wiring
 
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