Electrical problem?

[WhiteSnake74]

Hello,

I've noticed that my car has recently developed what seems to be an electrical problem. With the engine running, when I turn on the headlights I can see a constant change in intensity. I can also see it in the gauges when turned on and practically in every light in the car. Looks like an intermittent voltage.

I don't know what could be causing this.

Has anyone experienced this problem? Help!

Thanks!

 

[spincobra03]

??? Unless im misunderstanding what your saying, its sounds sort of normal to me. So when you turn the headlights on you are just seeing the interior lights seem to brighten?? I think that is sort of normal. When you increase the load on the battery (headlights) you may see the lights change in intensity. Although I think they would actually be dimming not increasing in strength. However I could be all together missing what your asking lol.

 

[WhiteSnake74]

What I mean is that they go up & down in intensity (brighten, dimming, brighten, dimming...). Fast... Don't know how to explain it. Kinda like "blinking".

I've seen that before in older cars.

 

[WhiteSnake74]

Anyone????

 

[spincobra03]

Sounds like a loose connection somewhere. I would first check your battery terminals, make sure they are very clean (no green sh*t) and very tight. Then if that looks good, I would get a flash light, what until its dark out, then turn on all of your lights and start wiggling wires around that can associated to your battery. See if you get a change in the lights. Start under the hood and then under the steering console. Thats what I would try first. It could be a loose molex plug.

 

[1wild-horse]

take a voltmeter and hook it to the batt. terminals. If it's happening w/ the eng. running you might have a voltage regulator problem. Any big amps or radio, any other elec. accessories running?

 

[WhiteSnake74]

Thanks!

I will clean the battery terminals, check the molex plugs and if that doesn't work, I will look for a voltmeter to check the voltage.

I'll keep you posted!

Thanks again!

 

[4.6snakedoc]

check your alternator.