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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
The plug that plugs into the voltage regulator on the back of the alternator isn't right. It doesn't kick in unless you move it to the left or right.. so some connections within are bad. I took it apart and couldn't find the bad connection but I know thats it so I guess Ill replace the regulator.