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1989 f150 5.0 fuel pressure help!

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  #16  
Old 02-04-2019, 06:22 PM
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Originally Posted by Conanski
The resovoir could be your problem, if it is leaking fuel back to the return line the HP pump won't get enough volume to pressurize the fuel system at the engine.
I think you might be on to something. after pulling all of the lines off and putting them back on I now have 28psi lol Maybe have some junk in the lines.
 
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  #17  
Old 02-04-2019, 09:41 PM
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Take it off and dismantle for a look, 28psi still isn't high enough.
 
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