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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.
Im assuming its the switch. Im not sure though. Even when I completely un-plug the switch and remove the keys the lights wont shut off. I have to disconnect the battery.
even when you disconnect the switch?I'm not exactly sure,but you "may"have another problem there..my lights go on when my ignition is turned on,with the lights off,so your problem could be in there ...