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Headlight problems

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kwlogger, May 25, 2023.

  1. May 25, 2023 #1
    Kwlogger

    Kwlogger Bobtail Member

    2
    1
    May 25, 2023
    0
    2004 kenworth w900L headslights and turn signal lights on the hood do not turn on. Marker lights from the cab to the end of the truck work good still. I check the battery box no bad wires, checked fuse panel and relays, checked turn signal switch high beam indicator will come on but lights do not turn on. Rear blinkers only work on switch. Whats my problem? Stranded until daylight.
     
    Kwlogger, May 25, 2023
    Kwlogger, May 25, 2023
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  3. May 25, 2023 #2
    skallagrime

    skallagrime Road Train Member

    3,354
    8,479
    Apr 10, 2012
    Indiana
    0
    Open hood, drivers side, look for the wire connectors, sounds like hood harness has been unplugged.

    If your brights dash light didnt come on i'd say the physical headlight switch was dead. Worth just shorting the wires behind it to verify it isnt that switch
     
    skallagrime, May 25, 2023
    skallagrime, May 25, 2023
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    blairandgretchen and Oxbow Thank this.
  4. May 25, 2023 #4
    Kwlogger

    Kwlogger Bobtail Member

    2
    1
    May 25, 2023
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    Hood harness on both sides cleaned and new switch put in still nothing only the dash lights turn still. Traced wires to find a rub spot and still no signs of damage
     
    Kwlogger, May 25, 2023
    Kwlogger, May 25, 2023
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    blairandgretchen Thanks this.
  5. May 25, 2023 #4
    BoxCarKidd

    BoxCarKidd Road Train Member

    4,065
    5,825
    Aug 26, 2014
    0
    Suspect a bad ground because it is on multiple different power circuits. Flasher does not work because there are not enough lights, amperage draw , for the flasher to function.
    Years slip away from me but can you post a pic of the fire wall on the left front? I do not want to waste time talking about the wrong truck.
     
    BoxCarKidd, May 25, 2023
    BoxCarKidd, May 25, 2023
    #4 + Quote Reply
  7. May 26, 2023 #5
    Zethull

    Zethull Bobtail Member

    21
    5
    May 26, 2023
    KY
    0
    Sounds like a ground wire
     
    Zethull, May 26, 2023
    Zethull, May 26, 2023
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