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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Old Jul 30, 2017 | 06:31 PM
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No fuel

90 f150. Installed new fuel pump. I can hear it run, but not getting any fuel. Lines are disconnected ahead of the filter and not getting any gas to come out. Could the new pump be bad?
 
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Old Jul 30, 2017 | 06:59 PM
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From: Easton,Ks
Need more information.
Is this a factory two tank truck?
If so has one tank been removed?
If so what was done with the two fuel lines that went to the removed tank?
 
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Old Jul 30, 2017 | 07:02 PM
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Factory single steel rear tank
 
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Old Jul 30, 2017 | 07:09 PM
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From: Easton,Ks
Sounds like the pump is wired backwards (running backwards).
Swap the wires to the pump, the red and orange wires.
 
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Old Jul 30, 2017 | 07:15 PM
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Wired backwards from the factory?
 
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Old Jul 30, 2017 | 07:19 PM
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No, by whoever replaced the fuel pump or the fuel pump itself is wired wrong..
 
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Old Jul 30, 2017 | 07:29 PM
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I replaced the pump. It has two wires, red and black. I spliced them back together the same way, red to red, black to black. Then it just has a plug on the outside of the tank.
 
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Old Jul 30, 2017 | 07:35 PM
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From: Easton,Ks
If swapping the red and black wires do not fix it replace the pump.
 
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Old Jul 30, 2017 | 07:44 PM
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I just replaced the pump, it's brand new. I hate to drop the tank again if I don't have to.
 
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Old Jul 30, 2017 | 07:59 PM
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From: Easton,Ks
Then reverse the red and orange wires outside the tank.

We have had them running backwards and not pumping before on this forum.

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Old Jul 30, 2017 | 08:12 PM
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Oh yeah? I'll try it.
 
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Old Jul 30, 2017 | 08:24 PM
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I reversed the wires and still no fuel. I'm guessing the new pump is bad?
 
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Old Jul 30, 2017 | 08:47 PM
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From: Easton,Ks
That would be my guess.
 
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Old Jul 30, 2017 | 09:12 PM
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Thanks for your help.
 
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