So today i noticed that when i come up to a stop light i notice that my headlights and my cluster start going dim. then as i start driving again the cluster and my headlights go back to its normal lighting. what might be the issue to this? Last week i started to notice that and my radio would also cut on and off randomly so i thought it would be a battery issue. So i took a battery from my other car. Radio stopped cutting on and off but im left with the lights going dim when im stopped.
test the charging system. with a multimeter, and the engine running, measure the voltage across the 2 battery terminals. then, measure across the alternator terminal and battery ground. you should be getting roughly 12.5v across the battery, and 14.5v across the alt. and battery ground
what he said, sound like your alternatore is starting to go out.
how does your car idle when this is happening?
Idle is under 1k. but thats even when the lights are not on. Sometimes its a bit jumpy but noting really big. like it bounces around 1k.