Here is a list of possible causes: Bad alternator (burnt windings, blown diodes, bad regulator) Loose, dirty, or burnt electical connections Wrong bulb for the alternator light in dash Bad battery Loose or wrong belt. First thing is to remove the battery, clean the connections, slow charge the battery and test it. If good reinstall in car. Now test the alternator. Places like Sears will do it for free. If good, clean all the electrical connections you can find. Start with the big ones between the battery, starter, alternator, and frame. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "dmc_5180" <dmc_5180@...> wrote: > > Hey guys, > > A friend of mine has a problem with his alternator not charging when he starts the engine. He > has to rev the engine too get the system to to show charge. Once he does this, the system > will show normal charge 13.5- 14.0 volts at idle and will be fine after that. It is if there is not > enough initial excitation voltage to get the alternator to turn on. Any thoughts? I seemed to > recall someone had posted a similar problem a while back with the same delco unit. I but was > unable to find it in the archives. > > Thanks > > Dennis > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx 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 Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/