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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.
I have a 91 Mustang 5.0, and am having problems with the fuel pump. When I turn the car off, the pump keeps running. I removed the relay, and it didn't fix the problem. Any advice would be appreciated!