On Tue, 23 Sep 2003 13:15:17 -0500, Brian Michalk wrote: > alternator is the culprit. However, the alternator still makes a > little bit of power even with the field off because the rotor is > slightly magnetized. Some automotive alternators will make full power with the field pulled open once they have been energized. The only way to stop them making current is to ground the field winding. Scott