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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

keep blowing fuses

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Old Apr 17, 2008 | 03:47 PM
  #1  
stephen.osborne1's Avatar
stephen.osborne1
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From: Montana
keep blowing fuses

got a '95 f-250 5.8 4x4 that keeps blowing the top left fuse (I can't recall the number off hand) and the tail lights (not brake lights) and instrument panel go out. I replaced the relay about a month ago because of this problem, and it worked for a while. Now I can't plug in a new fuse for more than a couple seconds before it blows. one of the codes said something about the voltage regulator. Isn't this on the alternator on this year of truck? can it be replaced without swapping alternators? Any other ideas?
 
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Old Apr 17, 2008 | 04:07 PM
  #2  
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Truckin4life
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From: Lubbock, Texas
if replacing the relay fixed it before... try it again... maybe you got a faulty relay that wore out fast. as for the voltage regulator... I dont think it is part of the alt... but i could be mistaken...
 
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Old Apr 18, 2008 | 06:32 AM
  #3  
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jroehl
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From: Lafayette, IN
You are. It is.

Jason
 
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Old Apr 20, 2008 | 05:29 PM
  #4  
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stephen.osborne1
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anyone have more ideas? would the voltage regulator fix it?
 
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Old Apr 20, 2008 | 06:08 PM
  #5  
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BChance
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From: Los Alamos
have a trailer plug? I'd wager you have a short, and those splices are the most likely starting point.

I would have your charging system tested, see whats the out put is and look at the regulator from there, but I kind of doubt if thats whats blowing your fuse.
 
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Old Apr 20, 2008 | 06:43 PM
  #6  
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mhg
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From: savannah,ga
if its the regulator then unplug the connector at the alt.
this will isolate the regulator
no need to unbolt the large single wire
 
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