Marker lights won't turn off 387

Discussion in 'Peterbilt Forum' started by conejosriverts, Jan 3, 2015.

  1. conejosriverts

    conejosriverts Bobtail Member

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    Nov 25, 2012
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    sometime today. wasn't doing it yesterday and when I parked this afternoon there it was. I'm stumped as well.
     
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  3. Lyle H

    Lyle H Road Train Member

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    Are you 100 per cent sure ALL your marker light switches are off? I have 3 switches that will turn on various marker lights.
     
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  4. conejosriverts

    conejosriverts Bobtail Member

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    Nov 25, 2012
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    Lyle H you wise ole dog. there is that oddball switch that is unmarked and never used on the other side of the dash. You sir are brilliant. Thank you. I'm a tad embarrassed. even old dogs learn new things.
     
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  5. Lyle H

    Lyle H Road Train Member

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    No problem. Been there.....done that.
     
  6. sailboatjim

    sailboatjim Light Load Member

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    Boston, Mass
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    Check relays under the glove compartment.
     
  7. gudethangs

    gudethangs Bobtail Member

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    Dec 14, 2014
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    Left truck in gear one time & couldn't figure out why truck wouldn't start. Now that was embarrassing!!!
     
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  8. conejosriverts

    conejosriverts Bobtail Member

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    Nov 25, 2012
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    lol gudethangs thanks i feel a little better now.
     
  9. Skate-Board

    Skate-Board Road Train Member

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    Puller over because I couldn't see and thought I was having a stroke. Left my reading glasses on.
     
  10. Driving light switch turns on marker lights
    If you decide to add driving lights. That switch will kick on your marker lights.

    Two small wires by the hinge of your hood. Might look into some driving lights.
     
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