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2003 Ford Expedition lighting system

Tiny
FPJS12345
  • MEMBER
  • 2003 FORD EXPEDITION
  • 5.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Going down road at night I notice the lights seem to get a little brighter and then dimmer again, kind of a pulsation, noticed it to be not only in headlights, but even in dash and interior lights. Dont know if its a short, the light switch or the multifunction switch.
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Sunday, February 1st, 2015 AT 12:33 PM

1 Reply

Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
First thing is to have the charging system checked. On many of these vehicles the lights will dim and brighten as the alternator goes bad. It is likely that your local auto parts store will check the charging system for you for free.
Let me know how it turns out.
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Sunday, February 1st, 2015 AT 1:09 PM

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