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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

my alternator

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Old Jun 25, 2007 | 10:30 PM
  #1  
patjr_45's Avatar
patjr_45
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my alternator

hey whats up i have a 94 f-150 xl and the alternator recently went out and i replaced it with the standard one. but at night when my lights are on my volt meter goes below normal and the lights dim out.any ideas???
 
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Old Jun 26, 2007 | 12:43 AM
  #2  
Bruce R Leech's Avatar
Bruce R Leech
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From: Mulege south Baja ca. Mx.
did it have a bigger pulley? or do you have under drive pulleys? If there all stock then the alternator is week take it back
 
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Old Jun 26, 2007 | 09:23 AM
  #3  
SilverSport's Avatar
SilverSport
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Joined: Feb 2006
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From: Formerly Nawlins
If that is a 2G alternator you also have to change the charging harness, or be sure you carry the larger fire extinguisher for Electrical and Chemical Fires.
 
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Old Jun 26, 2007 | 10:59 AM
  #4  
Bruce R Leech's Avatar
Bruce R Leech
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From: Mulege south Baja ca. Mx.
it should be 3G so dont worry about the post above
 
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Old Jun 26, 2007 | 11:21 AM
  #5  
92F150Flare's Avatar
92F150Flare
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From: Goose Creek SC
If you are putting a stock one on.........make sure your battery is well charged.......you'll burn the alternator out fast if the battery is down below 12 volts.........they are made to maintain a charge.......not build one up.

Good Luck
 
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