Question about 1987 Ford F 150

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1987 ford 150 rear fuel tank not working

Hello, When I switch to the rear tank the gauge goes to past full, then drops to E. Even though I have it on the rear tank it keep drawing fuel from the front. I have switched the switch back and forth many times like suggested and it still does the same. Maybe once in awhile it will stay at 1/2 tank "guage" but continues to draw from the front. I have also banged on the fuel tank etc like suggested. The truck only has 64k miles on it. Any help would be great.. Thank you very much.

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  • fordhawk Mar 14, 2009

    i have the same problem except opposite tank.

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Remove the fuel selector switch from the dash, you can test it with a simple $8.00 swing volt/ohm meter. Its probably bad. Note there is a valve switch under the drivers door jam that selects witch fuel line to use, that is the second place to look. Hope it works..

Posted on Jan 14, 2009

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1987 fuel level guage issue 87 F150 Lariat XLT 5.0 2wd. Have a very similar situation. Front tank position shows empty even when I know there is gas. Rear tank position shows full after refilling but...


the gas is regulated from the switching valve you control off the dash. Check the valve to hear it switch
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