Headlight problems!! Need help!!

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Derricks, Apr 7, 2018.

  1. Apr 7, 2018 #1
    Derricks

    Derricks Bobtail Member

    12
    0
    Aug 26, 2017
    0
    i have a 07 Peterbilt 385.
    After replacing bulbs noticed problems with headlights.

    Driver headlight dim
    Pass headlight stays high beam when lights are on. I flick the high beam on steering wheel and pass. High beam doesn’t nothing but stay on. The driver headlight will brighten up but then go dim.

    I have replace both pigtail connectors, rewired wires that had cuts or can see wiring and still nothing.
    Need to get inspected, have to fix fast
     
    Derricks, Apr 7, 2018
    Derricks, Apr 7, 2018
    #1
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  3. Apr 7, 2018 #2
    DieselTech_Aus

    DieselTech_Aus Light Load Member

    274
    309
    Dec 20, 2017
    WA
    0
    problem only started after replacing bulbs or the problem was the reason for replacing bulbs?
     
    DieselTech_Aus, Apr 7, 2018
    DieselTech_Aus, Apr 7, 2018
    #2
  4. Apr 9, 2018 #3
    roadrover

    roadrover Bobtail Member

    29
    17
    Jan 22, 2014
    Colorado
    0
    Sounds like bad contacts in the dimmer switch on the steering column.
     
    roadrover, Apr 9, 2018
    roadrover, Apr 9, 2018
    #3
  5. Apr 13, 2018 #4
    catwrench55

    catwrench55 Light Load Member

    211
    88
    Jan 5, 2015
    0
    Double check that you put 9004 bulbs in and not 9007. Same style connection but two of the pins are different places. Btdt
     
    catwrench55, Apr 13, 2018
    catwrench55, Apr 13, 2018
    #4
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