Left turn signal not working

Discussion in 'Ask An Owner Operator' started by Neverquittrucking228, Sep 19, 2022.

  1. Neverquittrucking228

    Neverquittrucking228 Light Load Member

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    Feb 23, 2021
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    Hello my fellow truckers. I have an issue with my left turn signal not working when my head lamps are on so in the daylight everything works fine but at night with my headlights on my left turn signal nor my 4-way flashers work. Please help before I have to go the shop guys!
     
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  3. okiedokie

    okiedokie Road Train Member

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    It's a ground issue. That's all I got.
     
  4. Hammer166

    Hammer166 Crusty Information Officer

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    What he said. Start by unplugging trailer cord. Then start unplugging fixtures on whichever unit is bad. When I've run across this it's always been in the rear trailer box, and often in the light itself and not the wiring.
    But your mileage may vary.
     
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  5. lester

    lester Midwest's #1 Feed Hauler

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    Newer or older truck?

    Any time my blinkers act up 99.999% of the time I have a burned out taillight on the truck or broken wire to said light.
    01 pete
     
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  6. Neverquittrucking228

    Neverquittrucking228 Light Load Member

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    Feb 23, 2021
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    Thanks. Guys definitely probably a wiring issue bc it started back working on its on before I could take it to the shop
     
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