Thanks HWORRELL. You are more thank likely right. The selenoid is stuck open. But,would this cause the alternator to not hole the engine? How would that work? The alternator wire is on the same post as the battery,right? and should hold the charge needed to sustain power to the motor if the battery fails. So,even if the bridge to the starter and battery is constantly connected,once the batter is disconnected the alternator should pick up the motor and stop the charge on the battery,so the selenoid becomes a non-issue. Why,with a new and tested alternator,would this be the case of the engine quitting after the battery is disconnected? That's confusing. Bad wires? They look good. Poor connection? Feels tight and looks clean. Belt is tight and turning without a problem. Is this the selenoid,or keep looking?