5.0L (1979-1995) Mustang Technical 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.

power source

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Old Oct 4, 2007 | 05:14 PM
  #1  
andywear87's Avatar
andywear87
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Default power source

what fuse number in a 90 for body has power when the ignition on and not when it is off or some where to run the ignition wire of of a relay from a fan?
Old Oct 4, 2007 | 06:21 PM
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silver91gt
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Default RE: power source

you need a voltmeter to check it
Old Oct 4, 2007 | 06:48 PM
  #3  
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andywear87
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Default RE: power source

i know i just figured someone might know off what they had used one for. worth a try
Old Oct 4, 2007 | 06:53 PM
  #4  
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93 LX FiveO
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Default RE: power source

i wired my gauges into 18 (fuel pump)
Old Oct 4, 2007 | 07:08 PM
  #5  
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andywear87
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thank you very much that is exactly what i was looking for!
Old Oct 4, 2007 | 07:42 PM
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mjr46
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Default RE: power source

you don't really need a volt meter to check for hot when ign off or hot in run only circuits...a test light is the first thing I grab however both ideaswill work
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