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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

VERY weird

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Old Aug 6, 2008 | 10:33 PM
  #1  
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BigJake34452
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From: Inverness Fl
VERY weird

ive been waiting for the fuel tank selector switch for my grandma's 83 F-250 4x4 460 4spd. because both fuel pumps wont turn on and i figured thats a good start and my uncle was walking around the truck and heard a buzzing, with the key totally out of the ignition and everything one fuel pump WAS RUNNING CONSTANTLY. they had to disconnect the battery to shut it off, any ideas what could cause this?
 
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Old Aug 6, 2008 | 10:41 PM
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Fuel pump relay stuck is one possiblity. Look over near the brake booster.
 
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Old Aug 7, 2008 | 03:00 PM
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thanks, will do.
 
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Old Aug 15, 2008 | 12:33 PM
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i looked in that area and there is a couple of relays, anyway to tell which is which?
 
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Old Aug 15, 2008 | 01:06 PM
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Pull one at a time and see which one stops the pump.
 
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