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  1. #1
    Sr. Mechanic SmokeU's Avatar
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    Default Aux lights install

    so last week I had broken my fog lights and now have a new set

    probblem is I cant figure out what is wrong with them and why they wont light up

    the only thing I have noticed is that on my switch it has a little light in it that turns on when you turn the switch to the on position that is not turning on so that might be some some indication of the probblem

    or the problem could be that the lights just suck and don't work... I don't know so any help would be appreciated and if pics are needed then I can get some
    2004 Chevy Silverado w/ 5.3L V8 / Z71 / Shorty

    Would rather be going too fast then too slow:out:

  2. #2

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    Are they stock fog lights? or are they custom? I suggest you try working the fog lights without a switch, maybe by touching the wires together. Good luck
    00 Chevy k3500
    6.5 turbo Diesel
    Straight Pipe 4'' dual Exhaust
    HD Aluminium Wheels
    HID Headlights/LED Taill ights
    Airbag 5k LBS helper springs
    LED interior lights

  3. #3
    Sr. Mechanic SmokeU's Avatar
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    Default

    Quote Originally Posted by Dukeschevy View Post
    Are they stock fog lights? or are they custom? I suggest you try working the fog lights without a switch, maybe by touching the wires together. Good luck
    no they arent the stock ones

    there big 100W ones that go on the brushguard
    2004 Chevy Silverado w/ 5.3L V8 / Z71 / Shorty

    Would rather be going too fast then too slow:out:

  4. #4

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    Check for power to the switch, check your grounds, check for broken wires / blown fuses from when the other lights got broken.
    You can "bench test" the new lights by touching the wires across the battery - watch your eyes!

    Good luck,

    1999 Chevy K2500 Suburban 350
    K&N, reworked cai, Thrush cat-backs
    Vinyl, cranks, floor shift, and rear air!

  5. #5
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    TRPLXL2's Avatar
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    Default

    X2 on checking the lights directly off the battery, I had a set of PIAA lights that the LED indicator on the switch burned out (I didn't know that at the time) and I tore apart the whole truck only to find out that there was nothing wrong at all just a bad indicator light. A broken wire could be a possibility as well, if those two things are not messed up then the lights are probably bad.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  6. #6
    Sr. Mechanic SmokeU's Avatar
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    Default

    ok so we used the wiring and switch that came with the lights and it works just fine but it wont work with my existing wiring and relay

    I'm thinking its because the system has like a fuse box with a 20 amp fuse in it and there is no relay
    Last edited by SmokeU; 10-24-2009 at 07:32 PM.
    2004 Chevy Silverado w/ 5.3L V8 / Z71 / Shorty

    Would rather be going too fast then too slow:out:

  7. #7
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    What kind of lights are these, because I know my PIAA's are funny about stuff like that as well. They come with there own terminated wiring harness, so you have to use what they give you instead of existing wiring. My KC's are just generic wiring with a fuse and relay, that is definatley interesting that it didn't work with the other wiring. Well at least this way you get to start off with new wiring, good luck with the new system.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  8. #8
    Sr. Mechanic SmokeU's Avatar
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    Quote Originally Posted by TRPLXL2 View Post
    What kind of lights are these, because I know my PIAA's are funny about stuff like that as well. They come with there own terminated wiring harness, so you have to use what they give you instead of existing wiring. My KC's are just generic wiring with a fuse and relay, that is definatley interesting that it didn't work with the other wiring. Well at least this way you get to start off with new wiring, good luck with the new system.
    its a cheapy harbor freight brand that I have no clue as to why I got them but I am thinking I will just get a better system
    2004 Chevy Silverado w/ 5.3L V8 / Z71 / Shorty

    Would rather be going too fast then too slow:out:

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