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headlights and dash lights??

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Old May 22, 2012 | 09:06 AM
  #1  
SteelerSal's Avatar
SteelerSal
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'04 F-350 6.0
Joined: Apr 2006
Posts: 105
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From: Vine Grove, Ky
Club FTE Silver Member

headlights and dash lights??

Been noticing for a while now that my headlights and dashboard lights slightly fade in and out at a constant speed.
Not sure if this is normal and I just never noticed it or if maybe my alternator is going.
I live out in the sticks and there are not very many street lights so I tend to notice it more than in the night time city driving with everything more lit up around me.
 
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Old May 22, 2012 | 12:23 PM
  #2  
zhilton's Avatar
zhilton
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15 Year Member
Joined: Mar 2007
Posts: 4,604
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From: Claremore, OK
Could be a diode in the alternator. You'll need to pull it out of the truck and take to a parts store like AutoZone for them to test it.
 
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