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  1. #11

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    Quote Originally Posted by Enkeiavalanche View Post
    Just got this from them...

    Gm has a voltage problem on those bulbs. The original was a 3157, if I am not mistaken. To fix it we created the 4114 bulb to handle the heat and voltage issues caused by their electrical design.
    Thanks for the info! I'll remember that when mine go out in the next couple of weeks.

    2010 OEM 20" Wheels
    Color-matched mirror covers and emblem
    20% tinted windows - 6" eyebrow
    Black rear fender-wells
    Completely debadged and demolded
    Duramax airbox replacement w/ K&N filter
    2" Rear drop shackle
    Tailgate light bar
    Flowmaster Delta 50 w/ double tip exits
    Blue footwell lighting
    12" Pioneer Sub (custom downfire box) 850W amp
    Full LED interior

  2. #12
    Sr. Engineer
    Join Date
    Oct 2010
    Location
    Indianapolis, In
    Posts
    487

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    It is because they are in parallel and not series that one can go out and leave the other lit
    Quote Originally Posted by Cheez View Post
    If the lights are connected in parallel then how can one fail but not the other?

    It's not that big of a deal to change them on the Silverados, I just feel like these bulbs shouldn't be going out on every truck I see. Has anybody tried LED's as the driving lights instead of incandescent?
    2000 GMC YUKON SLT, 5.3L tow pkg, G80 rear/w 3.73 gear

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