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Blinkers/Hazards Not Working?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by IROCUBabe, Jan 7, 2010.

Page 1 of 4
  1. Jan 7, 2010 #1
    IROCUBabe

    IROCUBabe Road Train Member

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    Got a weird one, we have a blinker issue. Neither right nor left blinker, nor hazards, are working. It is not a fuse issue, checked both flasher, and blinker fuses.

    SOMETIMES they do work, majority of time they do not. Sometimes they flash ONCE then stop flashing. No lights on dash when they are not working. No sound (our blinkers beeep when engaged). Started last night, no major truck issues happened besides this. Totally at a loss here, any ideas?
     
    IROCUBabe, Jan 7, 2010
    IROCUBabe, Jan 7, 2010
    #1
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  3. Jan 7, 2010 #2
    roshea

    roshea Road Train Member

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    Good possibility of a problem with the turn signal/flasher switch itself. I recently had a similar problem and that was the problem.

    You may be able to get the lights to stay on by holding pressure on the switch when you signal, or on the hazard switch. It's worth a try and may help identify the problem.

    You are having this problem on both tractor and trailer, right?
     
    roshea, Jan 7, 2010
    roshea, Jan 7, 2010
    #2
  4. Jan 7, 2010 #3
    lostNfound

    lostNfound Road Train Member

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    Broken switch?

    Broken wire?

    Loose/bad connection?

    Bad ground?

    Always check the simplest things first, and escalate.
     
    lostNfound, Jan 7, 2010
    lostNfound, Jan 7, 2010
    #3
    Wiseguywireless Thanks this.
  5. Jan 7, 2010 #4
    Roadmedic

    Roadmedic Road Train Member

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    Put the 4 ways on and then release them again. The switch sometimes sticks and causes problems.
     
    Roadmedic, Jan 7, 2010
    Roadmedic, Jan 7, 2010
    #4
  7. Jan 7, 2010 #5
    IROCUBabe

    IROCUBabe Road Train Member

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    It may be a broken switch then, its not the 4 ways, we tried pulling it up and down hard, and nothing. Its real loose at the handle, hazards pulled as hard as i can and released again nothing. We will set up a repair otr when we get a bit further from the shop here which has a backlog.
     
    IROCUBabe, Jan 7, 2010
    IROCUBabe, Jan 7, 2010
    #5
    Jkuruc1 Thanks this.
  8. Jan 7, 2010 #6
    112racing

    112racing Road Train Member

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    check the harness that goes to the switch make sure its plugged in all the way some times you can hit it with your leg and loosen it or pull it out part way
     
    112racing, Jan 7, 2010
    112racing, Jan 7, 2010
    #6
  9. Jan 7, 2010 #7
    gummy bear

    gummy bear Light Load Member

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    Yup, probably the switch. I had a similar issue in two different trucks I drove.
     
    gummy bear, Jan 7, 2010
    gummy bear, Jan 7, 2010
    #7
  10. Jan 7, 2010 #8
    farmermatt

    farmermatt Light Load Member

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    Aug 7, 2009
    Lowry City, MO
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    mine did this a couple weeks ago and it was the blinker itsself

    turn on the blinker and tap or shake the blinker box it will likely turn on this was my problem everyone told me it was the switch and i replaced it first all I did was waste 135 bucks the $16 blinker box fixed it
     
    farmermatt, Jan 7, 2010
    farmermatt, Jan 7, 2010
    #8
  11. Jan 7, 2010 #9
    lovesthedrive

    lovesthedrive R.I.P.

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    There is a round bulb in your fuse panel that controls both your blinkers and your hazards. Usually it is a 2 prong device, about $8 at any truck stop or automotive store. Some of them have 3 prongs. Replace it and I bet everything will work fine.

    They do burn out after some time.
     
    lovesthedrive, Jan 7, 2010
    lovesthedrive, Jan 7, 2010
    #9
    Wiseguywireless Thanks this.
  12. Jan 7, 2010 #10
    IROCUBabe

    IROCUBabe Road Train Member

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    Dallas, TX
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    The flasher bulb in my box is clear, and rectangle. I can get a picture later for you. I will try replacing it first.
     
    IROCUBabe, Jan 7, 2010
    IROCUBabe, Jan 7, 2010
    #10
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