Lights Dimming

[94Beanxlt]

ok, when i start my X and turn my lights on they Dim slightly. When i put it into gear my lights Dim slightly more. I just spent $ 300 on all the electrical to be looked at and a i had a new alternator put in. I have upgraded fog lights, Hella lights, And a 800 watt system which are all disconnected and my headlights still dim. I would GREATLY appriciat anyones input on this subject. Thanks

 

[aldive]

Have you checked the charging system with a voltmeter?

Do any other lights dim?

 

[94Beanxlt]

Yes i had that checked. All of the lights in the truck dim hed lights, tail light, interior lights.

 

[aldive]

What were the voltages?

 

[94Beanxlt]

12 volts off 14.2 on

 

[aldive]

Take a voltage reading at the 12v comnnector to one of the headlights.

 

[94Beanxlt]

i checked that also and it was fine. This is really bothering me that i cant figure out this problem. OH yeah also i noticed that the lights seem to dim with the idal sound of the engine.

 

[FC2ED]

I had a similar situation. I noticed my voltmeter would move around erratically with no load, had it looked at and it turned out the tensioner pulley was bad. Give it a shot.

 

[VairKing]

Might want to have a load test done on the battery...If you just had your alternator replaced, and all your wiring is good, the battery might be bad...

 

[VairKing]

Oh and FC2ED you might want to limit your signature to 6 lines or less...

 

[94Beanxlt]

Hey Ryan, when u put your subs in did your lights dim at all with your cap in also. cause i had my system in for a while before i got my cap. and my lights and battery guag were all messed up?

 

[VairKing]

When I first put my system in, I didnt have a cap, just a 130amp alternator. The lights would dim while going down the road listening at a loud volume. Now with the cap, the lights dont dim at all when driving down the road, but when idleing, my dash lights will dim a little when the bass hits hard. I havnt noticed my headlights dim at all. When I get my second amp for my mids/highs, I will either upgrade to a 200 A altenator, or get a second cap.