Fuel pump

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July 25th, 2010, 5:20 PM

91chevyk1500

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Fuel pump

I own a 91 silverado k1500 the fuel pump works but will not run with key in start position or run position

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July 25th, 2010, 7:47 PM

2wd-K5

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a realay would be my first guess

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July 25th, 2010, 8:55 PM

maxxman04

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relay bad. relay should be on firewall near brake master cylinder

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July 26th, 2010, 6:16 AM

91chevyk1500

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we've tried 3 different relays and tested everyone to make sure they work which they do i can jump it from various places including the OBD 1 connecter which has to go through the relay to make the pump run power it up with the relay unplugged you get nothing

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