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lights dimming

  #1  
Old 11-13-2007, 09:38 PM
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Default lights dimming

For the past few weeks I have been noticing my lights dimming and brightening when I am driving at night. I took it to the shop and had the battery and alternator tested and everything checked out fine. Anyone else have this problem or have any ideas as to what might be causing it? Thanks for the help.
 
  #2  
Old 11-14-2007, 07:40 PM
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Location: Queen City, NC
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Default RE: lights dimming

well do u have an amp and subs in the trunk? cuz if so, its drawing power which dims headlights. Happens to my car all the time. I put in a capacitor, which helped only a little bit, so u have to upgrade the alternator and battery.
 
  #3  
Old 11-14-2007, 10:08 PM
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Default RE: lights dimming

AC compressor springs to mind. As does the electric fan that comes on periodically.

Both of these make my headlights dim whenever they kick on.
 
  #4  
Old 11-14-2007, 10:08 PM
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Default RE: lights dimming

no amps, no subs, stock electronics
 
  #5  
Old 11-16-2007, 03:59 PM
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Default RE: lights dimming

I have also noticed the same thing on my '03 EX-V6. It seems to happen when I accelerate, so I figured it had something to do with the alternator or wiring. I'm not sure, I wouldn't mind knowing why it happens as well.

**Note: This problem is most noticable while the high-beams are on.

(I too have not changed the stock electrical system)
 
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