2003 Mercury Grand Marquis Logo
Anonymous Posted on Jul 05, 2009

All lights work but my headlights dont, I can pull back on the high beems they work but when I try my head lights they do not.started out they where on and then went out,checked the fuse it looked good

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  • Master 580 Answers
  • Posted on Jul 10, 2009
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If you have an AUTO off/on/delay this could be malfunctioning, you may also need a need headlight switch however, First check your low beam halogen bulbs if they are bad replace BOTH at the same time they tend to fail at a similar time and this is the least costly repair NOTE wen changing these do not touch bulb with bare hand as oils from your skin can cause the to heat unevenly and explode inside your headlight assembly Use rubber gloves most Parts stores have these available for this reason

  • Anonymous Jul 10, 2009

    Also your headlight dimmer switch may be bad in the high/low beam

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