2002 Ford F150 F150 dies after it gets hot but runs fine on

2002 FORD F-150
152,000 MILES • V8 • 2WD • AUTOMATIC
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BIGBLUEFISH
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My truck recently started acting like it was not getting enough fuel under acceleration, my mechanic suggested replacing the MAF sensor so I did and the problem went away for a few days only to return,he then suggested changing the fuel filter once again the problem went away for about 1200 miles then today coming home it stalled and wouldnt start until it cooled down and once again it ran fine until it got hot. any ideas?
Jun 3, 2010 at 9:16 PM
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BMRFIXIT
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check for codes??
check fuel pressure
Jun 3, 2010 at 9:32 PM
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BIGBLUEFISH
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It gave me the po171 and po174 codes lean on the left and right bank when the problem first showed up before the MAF sensor was replaced but nothing today.
Jun 3, 2010 at 9:45 PM
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BMRFIXIT
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No codes return after you replaced MAF sensor !
If still have the codes check for vacuum leaks
check intake manifold gasket
Jun 3, 2010 at 10:18 PM
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BIGBLUEFISH
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Well this afternoon it quit again however this time it would start and idle but if you gave it any gas it dies,
gonna check the fuel pressure in the morning what kind of pressure should it have? I dread having to pull the tank if its the fuel pump.
Jun 4, 2010 at 10:05 PM
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BMRFIXIT
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Gasoline Engines
Blackwood & Navigator 5.4L (4V), Econoline, Expedition & Pickup (4.2L & 4.6L), Econoline, Excursion & Pickup (6.8L), Lightning 5.4L & Windstar fuel pressure PSI 30-45
Jun 4, 2010 at 10:47 PM
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BIGBLUEFISH
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Jack,
Thanks a lot for all the help.
Jun 4, 2010 at 11:02 PM