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Thread: aim headlight

  1. #1
    cadyowner6901 is offline Cadillac Owners Member
    Automobile(s): 2002 Deville
    Join Date
    Jul 2012
    Location
    Western New York
    Posts
    14

    aim headlight

    I had to change bulb in 2002 deville.. no prob. Now, the damn headlight is high to right. I tried to adjust but won't come down & in any further. what is the small gauge on top for. the screws only go so far then seem to strip loose don't want to make it any worse HELP??


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  3. #2
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2003 DHS - two-2002 DHS's, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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    Re: aim headlight

    Quote Originally Posted by cadyowner6901 View Post
    I had to change bulb in 2002 deville.. no prob. Now, the damn headlight is high to right. I tried to adjust but won't come down & in any further. what is the small gauge on top for. the screws only go so far then seem to strip loose don't want to make it any worse HELP??
    --------------------------
    the new bulb should "point" in the same direction as the original -
    assuming it is fully - properly seated -
    it is possible you missed one of the three tabs - and the bulb is sitting wrong -

    what is the small gauge on top for
    originally - it was a bubble-level - filled with a green liquid -

    this - from page 6-40 of the Owners Manual -

    Your vehicle has a visual optical headlamp aiming system
    equipped with horizontal aim indicators. The aim has been
    preset at the factory and should need no further adjustment.
    This is true even though your horizontal aim indicators may
    not fall exactly on the “0” (zero) marks on their scales.

    If your vehicle is damaged in an accident, the headlamp
    aim may be affected. Aim adjustment to the low beam
    may be necessary if it is difficult to see lane markers
    (for horizontal aim), or if oncoming drivers flash their
    high beams at you (for vertical aim). If you believe your
    headlamps need to be re-aimed, we recommend that you
    take your vehicle to your dealer for service. However, it
    is possible for you to re-aim your headlamps as
    described in the following procedure.

    The vehicle should be properly prepared as follows:
     The vehicle should be placed so the headlamps
    are 25 ft. (7.6 m) from a light colored wall or other
    flat surface.
     The vehicle must have all four tires on a perfectly
    level surface which is level all the way to the wall or
    other flat surface.
     The vehicle should be placed so it is perpendicular to
    the wall or other flat surface.
     The vehicle should not have any snow, ice or mud
    attached to it.
     The vehicle should be fully assembled and all other
    work stopped while headlamp aiming is being done.
     The vehicle should be normally loaded with a full
    tank of fuel and one person or 160 lbs. (75 kg) on the
    driver’s seat.
     Tires should be properly inflated.
    Headlamp aiming is done with the vehicle low beam
    lamps. The high beam lamps will be correctly aimed if
    the low beam lamps are aimed properly.
    The headlamp aiming devices are under the hood near
    the headlamps.

    If you believe your headlamps need horizontal
    (left/right) adjustment, follow the horizontal aiming
    procedure. If you believe your headlamps need only
    vertical (up/down) adjustment, follow only the vertical
    aiming procedure.
    Adjustment screws can be turned with an E8 Torx
    socket or T15 Torx screwdriver.

  4. #3
    cadyowner6901 is offline Cadillac Owners Member
    Automobile(s): 2002 Deville
    Join Date
    Jul 2012
    Location
    Western New York
    Posts
    14

    Re: aim headlight

    Thanks Basscat.. I figured it would be aimed properly when I replaced it. It was cold out, rushed to get it done with cold fingers, so you may be right, Will check when and if the weather ever breaks here! for now i'll just shine in others side mirrors the way others have done to me!


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