Payne, The original alternator has a high turn on speed and to generate any appreciable amount of current to power the lights or fans at idle is almost impossible. My up graded alternators have a lower turn on speed and deliver more current and voltage at lower RPM's. You also need to check and clean the grounds. This will help on the low voltage and dimming. John Hervey http://www.specialtauto.com/delorean-parts/alternators.html -----Original Message----- From: Payne [mailto:bpayne@xxxx] Sent: Sunday, October 05, 2003 8:38 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: Re: [DML] Re: Accuracy of charging meter Mine moves normally, but it seems to drop quite a bit while using acessories. At normal idle with no lights on the needs sits above the 13 volt mark. If I have the high beams on with the brake lights it drops drastically and everything dims. Thanks for the info, I'm probably looking at getting an upgraded alternator to deal with the load. payne > The voltmeter is pretty accurate when it is working right. If it is > always on the low side check it with an accurate voltmeter. It could > be that your alternator and-or battery need to be replaced or that you > need to clean up the connections in the binnacle and the main > grounding point inside by the front left tire. If it reads too high > that would indicate a bad voltage regulater inside the alternator. > David Teitelbaum > vin 10757 > --- [This E-mail Scanned for viruses by Onlinemac.com] To address comments privately to the moderating team, please address: moderators@xxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/