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Old 10-12-2014, 08:19 PM
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Default Fuel tank selection problem
On my 1987 4.9 EFI model, the fuel tank selection is stuck on the front tank. When the switch on the dash is flipped, the fuel gauge accurately displays the level in the back tank, but the pickup still drains the front tank (learned this the hard way).

Any ideas on what may be happening?

Thanks!
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Old 10-12-2014, 09:49 PM
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Does the rear fuel pump come on?
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Old 10-12-2014, 10:36 PM
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Originally Posted by Just call me Sean
Does the rear fuel pump come on?
How can I tell if it does?
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Old 10-12-2014, 10:38 PM
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Listen for it.
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Old 10-14-2014, 01:15 PM
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or the fuel pump ready light on the dash...
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Old 10-14-2014, 01:18 PM
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Originally Posted by techrep
or the fuel pump ready light on the dash...
Wtf are you talking about?
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Old 10-14-2014, 02:03 PM
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It was a joke Sean
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Old 10-14-2014, 02:09 PM
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When I see the wrong gen truck in an avatar it goes right over my head.
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Old 10-14-2014, 02:22 PM
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I have owned 4 F-150's now ... 87/92/94/08.
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Old 10-14-2014, 02:24 PM
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So you're 3/4s cool.
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