Question about 1987 Ford F 150

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Turn signal flasher keeps blowing

I have an 87 F 150 pick up. My turn signal flasher keeps blowing. The fuse doesn't blow and the signals work for a day or two when I replace the flasher but I've been through three flashers in a week, now. I have a fair amount of knowledge when it comes to electrical systems but I cannot understand why the flasher would fail before the fuse.

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  • r_clark May 11, 2010

    The Flasher relay blows but the fuse don't? Makes no sense, Mayhap it ain't fused????? Fuse should blow before the flasher smokes. Got to be a feed back on the 'turn signal/flasher/brake' light system. They all run togeather. Main area where they meet is the turn signal/flasher area. That thing on the top of the steering column just below the wheel . Aftermarket trailer connection? Or ground wire for the forementioned that isn't grounded like it should be.

  • Roberta Smith
    Roberta Smith May 11, 2010

    are the turn lights dim by chance ?



    Robert

  • Anonymous Mar 19, 2014

    keeps blowing out fuses on right and left turn signals

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  • Master
  • 1,990 Answers

This is more than likely caused by a Bad Turn Signal Switch Housing inside the Sterring column. The one that the Handle is attached to and Wraps around the Sterring Shaft on the Inside of the Column.

Posted on Jan 23, 2009

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