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Fuel leak

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Old Aug 11, 2020 | 02:06 AM
  #1  
Prillmayer's Avatar
Prillmayer
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Fuel leak

I have a 2005 F150 Lariat Supercrew. I recently started up the engine and had a large volume of fuel pour onto the ground just below the engine.

I don’t see any issue with the fuel tank, the fuel line from the tank or the future filter.

Any suggestions on what the problem could be? Running out of ideas.

Thanks.
 
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Old Aug 11, 2020 | 08:00 AM
  #2  
redfishtd's Avatar
redfishtd
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Sounds like a fuel rail problem lots of orings on injectors or gasket bad on fuel rail pressure sensor . fuel rails not hard to pull . put all new orings on, use motor oil to reinsert . Its a good test to pull fuel rails and leave injectors sticking out with key on to make sure none drip .
 
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Old Aug 15, 2020 | 09:57 AM
  #3  
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redfishtd
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I forgot to say . Sometimes the fuel rail sensor Diaphragm can go bad as it is vacuum assist . but then it would have to eat rubber hose to leak like that. It usually causes a very rich mixture and floods out engine . Sometimes the oring gasket will leak on rail after being disturbed .
 
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Old Aug 23, 2020 | 11:35 AM
  #4  
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1saxman
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Obviously a fuel pressure leak in the engine area. Have somebody turn the key on while you watch shouldn't be hard to find. Oh, do not start the engine!
 
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