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GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat
GM Technical Discussion and Questions
GMC/Chevrolet Truck/SUV
fuel pump issues
GMC/Chevrolet Truck/SUV
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fuel pump issues
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Aug 7, 2020 | 11:50 AM
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Kaalimaa
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fuel pump issues
Why do I lose fuel suction after 6ft using a mechanical fuel pump after placing a new pump in?
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Aug 7, 2020 | 12:05 PM
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Mike
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What source is the line connected to?
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Aug 7, 2020 | 12:26 PM
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Kaalimaa
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to the fuel selector valve, I also tried a fuel gas can full of fuel and got the same result.
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Aug 7, 2020 | 09:48 PM
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CathedralCub
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Where is the return going?
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Aug 8, 2020 | 10:23 PM
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carfixer007
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Are you pushing the or pulling?
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Aug 9, 2020 | 12:17 AM
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Kaalimaa
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I'm pulling and the return line goes back to the tanks, but it also depends on the side you are using.
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Aug 10, 2020 | 10:44 PM
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carfixer007
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You need a high volume pump when pulling.
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