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  1. #1
    Master Mechanic
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    Default DRL Bulb Change...

    To all who have experienced the dreaded one bulb out on your DRL'S, or have seen them on other vehicle's, or have not had the issue yet, but will here I hope will help you out.

    1) Owner's manual calls for 4157LL bulb replacement(LL=Long Life)
    2) If you have/use the Auto On feature for your headlights and when switch from DRL to Headlights and back, these bulbs will NOT handle the load.
    3) This causes failure when you change even from a dark area(tunnel) back to daylight, the load is to much, which causes the bulb to pop...
    4) You can changed from the 4157LL to the 3157LL, because these are higher intense bulbs used for your turns/stop lights.
    5) You can also use the 3157NA(Amber bulbs), to which I have them in my truck(look at my Burban Album) as I will post a picture of it there.
    6) Use a healthy amount of electrical contact grease before installing(any of the bulbs) that use this type of connector(4 strip silver wires). This will ease the heat from them being on/off.Hope this simple change will help make your DRL bulbs last a whole lot longer....Jeff
    JMoney02

  2. #2
    Legend

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    East of Branson, Missouri
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    Default

    I wondered what all the gummy, nasty, sticky, greasy stuff was when changing out the turn signal bulbs. I figured it was a way to keep the contacts from rusting/sticking!

    Thanks for the heads up - I know that about 1 out of 4 trucks I pass have a DRL out! I got lucky enough... neither of them work!
    Steven



    "The Sarge"
    1999 Chevy Suburban LT- K2500
    7.4 454 Vortec, 4WD
    305/70/16 on Eagle Alloy




  3. #3

    Default

    ya, this sucks for sure!! i was one of the unlucky ones. mine blew out. shortly after, i decided to spend a CRAP LOAD of money and do an LED conversion all the way around. once i was done and all was good, the same light went out! and it was an LED!! those things shouldn't blow! so i just switched them and waited for the other one to blow, sure enough, it did. so now i just have LED's in there that don't work! oh well, at least it looks uniform and not just one of them is on!!


    Cody- Tulsa, OK
    '04 silverado

  4. #4
    Moderator
    dwill3015's Avatar
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    Yacolt, Washington
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    Default

    Nice write-up Jeff!
    Darcy
    Washington State
    2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
    Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.

  5. #5
    Master Mechanic
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    Default

    Quote Originally Posted by dwill3015 View Post
    Nice write-up Jeff!
    Thank You and I am reporting that the light burns on.....I see more and more of these all the time...
    I do not know why the spacing didn't come out the way I wanted? Wan, wan wan, Right....

    Jeff
    JMoney02

  6. #6
    Master Mechanic TahoeFever's Avatar
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    Now IN Auburn AL :)
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    Default

    i guess i was lucky with this issue ...knowing my luck as i'm writing this mine burns out lol
    04 Tahoe LT 5.3L stock MSD 8.5mm Wires
    Gigbson Duels Straight Exhaust, Parrot 3100 Bluetooth
    K&N 77 Series CAI, Sirius Radio
    De-badged, Valet Dei remote start
    5000k HID -Higherlevelauto.com
    Federal 100watt air horn

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