stevog Posted January 20, 2012 Report Share Posted January 20, 2012 Update I charged battery with agm battery charger over night and also switched ground to 4 gauge wire ( not stock, knu wire) and light's still dim. Also, I build a new box and now have a bad voltage drop, lowest I saw was 11.5. On average, it stays around 12.5 and 13-13.3 while driving. So I'm guessing only way to fix it is to get high output alternator? Or add another battery? thats weird i have a sundown 2500 also with 0 gauge grounds stock battery stock alt and my voltage stays at 13.6 when playing Quote Link to comment Share on other sites More sharing options...
tonytone4143 Posted January 22, 2012 Report Share Posted January 22, 2012 Sounds like tout alternator is on. It's was out. Common problem on BMWs. Quote Link to comment Share on other sites More sharing options...
tonytone4143 Posted January 22, 2012 Report Share Posted January 22, 2012 *your. *.way. Quote Link to comment Share on other sites More sharing options...
TeamHT Posted January 22, 2012 Report Share Posted January 22, 2012 Have you checked your alternator output? Quote Tell me...does this smell like chloroform to you? Link to comment Share on other sites More sharing options...
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