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.

fuel pump issue

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Old 06-26-2009, 02:39 PM
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five0fm
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Default fuel pump issue

alright guys i need some help. my fuel pump works, relay works, fuel inertia switch is fine. im getting power to three wires in the relay. the forth wire (fuel pump wire, black and pink) doesnt get power. ive tried two different computers that i know work..different relays etc. does anyone have any idea what it could be? if i cant figure it out would it be safe to just wire in a relay of my own to a switched 12 volt? i know it will run constant when the key is turned (no prime) but thats not a big deal...any advice would be appriciated
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Old 06-26-2009, 08:49 PM
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86 5.0L
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cut wire along the way?
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Old 06-26-2009, 09:59 PM
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no i traced each individual wire and they are all fine.
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Old 06-28-2009, 05:26 PM
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still cant figure it out
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