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49 Mercury Headlight Mystery

Discussion in 'New to the H.A.M.B.? Introduce yourself here!' started by JoeyV, Apr 16, 2012.

  1. JoeyV
    Joined: Jan 1, 2011
    Posts: 16

    JoeyV
    ALLIANCE MEMBER
    from San Diego

    Greetings! I have been trying to sort out the headlight electrics on my 49 Mercury. I changed the car from 6 to 12 volts, and replaced all of the bulbs. The headlights worked at that time. Then I replaced the Turn signal switch in the steering wheel (it wasn’t working) with a new switch for a 12 volt 56 Ford. At that point the headlights didn’t work (but there is no logical connection that I know of between the turn signal switch and the headlights). I replaced the Headlight switch, still no headlights. Then I replaced the floor mounted bright-headlight switch. Still no headlights. I checked that juice is going across the headlight terminals on the headlight switch when the headlight switch knob is pulled all the way out. I verified that the 2 fuses under the dash are good, and that there is juice going across the fuses and the 3 circuit breakers under the dash. When I connect a hot wire directly to the wire that feeds the headlights, there is no spark, as though there is a circuit “open” somewhere. Is there a fuse or some other path I should be checking to try to solve this? Electrics are not my strong suit, any suggestions would be appreciated…thanks!
     
  2. ac0j
    Joined: Apr 15, 2012
    Posts: 36

    ac0j
    Member

    How about the ground side???
     
  3. How about using this forum as its intended????
    READ the "sticky" at the top of the page,,,INTRODUCE YOURSELF here,,,per HAMB Protocol....Then you may ask your question over in the main message board....
     
  4. tommyd
    Joined: Dec 10, 2010
    Posts: 11,333

    tommyd
    Member
    from South Indy

    Welcome and what THEY said^^^^^^^. If it's got 12 volts and no workie, It's the ground.
     

  5. styleline
    Joined: Feb 14, 2009
    Posts: 868

    styleline
    Member
    from so-hol

  6. JoeyV
    Joined: Jan 1, 2011
    Posts: 16

    JoeyV
    ALLIANCE MEMBER
    from San Diego

    TommyD - Most interesting response & it makes sense! Do you suggest I try grounding the headlight switch or the headlights themselves? very cool answer...thanks!
     

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