Posted 6/5/2010 10:38 (#1225229 - in reply to #1225011) Subject: Re: Powerstroke Alternator Only Starts Charging @ 2k RPM's
Have you checked the voltage on the start signal line. Alternates
will start due to residual magnetize without the start signal,
but generally require high RPM. As it works after it starts
charging I would look for open or bad connection on the start signal
(the line with resistor wire or resistor going back to the key.)