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Headlights dim when using power windows

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Old Jul 26, 2014 | 08:36 PM
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Default Headlights dim when using power windows
Mine is a 1998. Just wondering why my headlights will dim when using the power windows and sometimes brakes. I'm getting a reading of 13.6 to 13.9 volts on the dic. Any ideas?
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Old Jul 26, 2014 | 09:11 PM
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I've never had one that didn't momentarily dim when the load of the power window motor first hits. Momentarily!! Stop worrying.
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Old Jul 26, 2014 | 10:46 PM
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OP's first car with power windows hahaha.
In all seriousness, some cars even do it when turning the steering wheel
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Old Jul 27, 2014 | 01:27 PM
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Originally Posted by dbgoodwin
OP's first car with power windows hahaha.
In all seriousness, some cars even do it when turning the steering wheel
No No not my first with power windows. Haha All of my other cars have them but none of them do that at least not bad enough that I can notice like in the vette. Im not concerned about it just wondering if there was anyone out there who had a similar problem and had an easy cure.
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Old Jul 27, 2014 | 02:16 PM
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Originally Posted by turbota
No No not my first with power windows. Haha All of my other cars have them but none of them do that at least not bad enough that I can notice like in the vette. Im not concerned about it just wondering if there was anyone out there who had a similar problem and had an easy cure.
Cure for power windows drawing current? Don't use power windows when headlights are on. Even better, don't pay any attention to the lights when you push the power window button. You can add bigger wires and clean grounds and connections, but you're trying to fix a problem that isn't a problem.
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Old Jul 28, 2014 | 10:27 AM
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My lights dim also.
While sitting at a stop light with my turn signal on, I can hear my fuel pump surge to the rhythm of the flasher.
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Old Aug 9, 2014 | 03:02 PM
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When I first drive the car the headlights go dim several times. Seems to go away after the car is warmed up.
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Old Aug 9, 2014 | 04:35 PM
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Glad I'm not the only one. One of those things that drives me crazy for some reason
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Old Aug 9, 2014 | 05:05 PM
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You could put in a Big 3 kit from SacCity.

http://forums.corvetteforum.com/c5-p...e-big-3-a.html

I put one in when I installed my 1100 watt rms old school
Rockford Fosgate stereo and I get no dimming at all.
Last edited by StrangelovesM6Vert; Aug 10, 2014 at 05:38 AM.
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Old Aug 10, 2014 | 05:38 AM
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Here you go from above link:

Update: If you have an issue with your lights dimming when you turn on other power accessories, several people have reported that our Big 3 has fixed that.
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Old Aug 10, 2014 | 09:25 AM
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You could try cleaning the main power connections at the starter solenoid and also make sure the grounds are clean.
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