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Running Lights Fuse

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Daycabinit, Aug 23, 2022.

  1. Aug 23, 2022 #1
    Daycabinit

    Daycabinit Light Load Member

    93
    60
    Dec 11, 2016
    0
    Running lights fuse keeps blowing, the truck only pulls one trailer I’ve gone over all the wires on the truck and trailer I replaced the pigtail still keeps blowing after driving about half hour I was sure it was a worn thru wire but I can’t seem to find it. Any ideas ?
     
    Daycabinit, Aug 23, 2022
    Daycabinit, Aug 23, 2022
    #1
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  3. Aug 23, 2022 #2
    AModelCat

    AModelCat Road Train Member

    29,188
    158,955
    Jul 7, 2015
    Canuckistan
    0
    Too many lights?
     
    AModelCat, Aug 23, 2022
    AModelCat, Aug 23, 2022
    #2
  4. Aug 23, 2022 #3
    tscottme

    tscottme Road Train Member

    14,286
    27,463
    Jul 25, 2008
    Somewhere out West, in my mind.
    0
    I think @AModelCat is right. If the truck has been in use for years, been modified with extra lights or any modification near wiring I'd say a nicked wire or damaged connecter could cause the fuse to keep failing. Did someone add more lights than came from factory or switch some or all lights to LEDs.
     
    tscottme, Aug 23, 2022
    tscottme, Aug 23, 2022
    #3
  5. Aug 23, 2022 #4
    Daycabinit

    Daycabinit Light Load Member

    93
    60
    Dec 11, 2016
    0
    All the same lights for the last couple years there is just the minimum lights on the truck /trailer nothing fancy
     
    Daycabinit, Aug 23, 2022
    Daycabinit, Aug 23, 2022
    #4
  7. Aug 24, 2022 #5
    skallagrime

    skallagrime Road Train Member

    3,856
    9,943
    Apr 10, 2012
    Indiana
    0
    Over the weekend/evening, disconnect truck and trailer, turn on running lights, see if its time only with just tractor first eliminate variables.
     
    skallagrime, Aug 24, 2022
    skallagrime, Aug 24, 2022
    #5
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