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dimming lights

This is a discussion on dimming lights within the General Help forums, part of the LSx Technical Help Section category; well I seem to have a slight electrical problem that I have ignored for a while but I believe its ...

  1. #1
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    97 3.8L Firebird 5 Speed

    dimming lights

    well I seem to have a slight electrical problem that I have ignored for a while but I believe its time to look into it

    Whenever I hit the brakes, the lights in the car(and headlights) dim for a second, the battery gauge drops and rises as well. this also happens when I signal, the voltage meter fluctuates and the lights dim randomly. I am thinking this is an alternator problem but I'm not really sure. I tested the alt. and it showed it is overcharging but then it starts charging normally
    Any Ideas?

    PS- this has been happening for a while and the car always starts right up so I have never really thought about it

    Car is 1997 3.8L Firebird 5 speed

  2. #2
    Senior Member Orcus79's Avatar
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    black
    2002 WS6

    possibly the voltage regulator on its way out.

  3. #3
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    97 3.8L Firebird 5 Speed

    thats what I heard, so a new alternator isn't that bad

  4. #4
    Member bberretta's Avatar
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    2000 TA Firehawk 0041/742

    Pull the Alternator off and take it up to Autozone/Pepboys/etc and have them test the voltage regulator just to make sure. I would agree that most likely it is on the way out, but just make sure before you replace it. If you have a ground fault somewhere it can cause similar issues.

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