Thanks Jakedaawg, Right now I'm considering that maybe it is not the VR after all. Perhaps it is the dash-mounted volt meter. When the ignition key is on without the motor running should a good voltmeter register approximately 12 volts? Mine goes way high on the scale, above the range of the meter and the needle just vibrates. Does this indicate a possibly faulty voltmeter and not the need to replace the VR? I first noticed the voltmeter at this extremely high end of the scale while running the engine. All the battery terminals are tight, all fuses are good, all electrical components seem ok. Battery is fully charged and has correct water level. Thanks again for your help.