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what is the normal voltage for a 2004 Comp G?

G

Gohan77

New member
I have a 2004 comp g and my voltage meter says I run about 14.3 at idle and between 14.4 to 15.10 while driving. Is that normal? The reason I ask is because when I start the car I notice my interior lights flicker slightly and my headlights do too when im driving. Ideas?
 


For the interior lights and flickers. Clean the grounds or do the big 3 upgrade. Also there's a ground for the headlights directly behind them clean those as well.
 
Gohan77 said:
Big 3? Idk what that is. Also are cleaniing wires difficult?
Click to expand...

Basically upgrading the weak ground and power wires GM uses up something beefier. I think stock is like 6 gauge so guys tend to you 0 or 2 gauge. Ill find you a thread about it here shortly.

Simple to clean. Just unhooking the wires and wire brushing the studs or bolts they connect and sanding the area around it.
 


Yup mines been that for the last 5 years or so. A healthy battery and good alternator would do that.

The alternators job is to charge the battery so that the battery doesn't get below 12v or so. So that you can crank the car.
 
Not really might put a little more wear and tear on the bulbs but that's the only con I can really think of.
 


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