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Hey Mike==Either someone wired it up wrong or the relay is hanging. I would bet someone has run a wire streight to the ignition. Check it out. The ecm is supposed to ground the relay for 2 seconds when the ignition swith is turned on. GoodluckJoe

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โˆ™ 2004-07-02 11:46:30
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Q: Why would a fuel pump stay on in a 1991 F150 before startup?
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