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Allensracing · 12-13-2010, 01:08 PM

what year is the truck? or more importantly, what alternator are you using? it used to be normal for the charging system to not keep up at idle. those 35 amp alternators cant keep the headlights going at idle
it sounds like the alternator is not giving enough juice at low rpm

12-13-2010, 01:08 PM	#2
Allensracing Registered User Join Date: Dec 2010 Location: Paradise, ca Posts: 295	Re: Lights dimming at idle. what year is the truck? or more importantly, what alternator are you using? it used to be normal for the charging system to not keep up at idle. those 35 amp alternators cant keep the headlights going at idle it sounds like the alternator is not giving enough juice at low rpm __________________ Last edited by Allensracing; 12-13-2010 at 01:09 PM.