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Thread: dimming lights
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01-25-2010, 07:16 PM #1
- Join Date
- Apr 2009
- Location
- Palm Desert, CA
- Age
- 32
- Posts
- 121
White- 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
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01-25-2010, 07:34 PM #2
possibly the voltage regulator on its way out.
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01-26-2010, 12:41 AM #3
- Join Date
- Apr 2009
- Location
- Palm Desert, CA
- Age
- 32
- Posts
- 121
White- 97 3.8L Firebird 5 Speed
thats what I heard, so a new alternator isn't that bad
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01-26-2010, 06:33 AM #4
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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