Thanks, that was quite informative. I was thinking of ac coupling the the battery terminals to a scope to see if I can see half a phase missing. Also, do you know of any way to tell if I have an open or shorted diode? It sounds like if I have an open diode, I don't need to replace the alternator, but I probably should if it's a short.
Thanks again,
Dave
'99 silver frost svt
