2002 Ford F-150 F-150 dies after it gets hot but runs fine on

BIGBLUEFISH

MEMBER
2002 FORD F-150
V8
2WD
AUTOMATIC
152,000 MILES

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?

6 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

Check for codes?
Check fuel pressure

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Thursday, June 3rd, 2010 AT 9:32 PM

BIGBLUEFISH

MEMBER
4 POSTS

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.

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Thursday, June 3rd, 2010 AT 9:45 PM

BMRFIXIT

MECHANIC
19,053 POSTS

No codes return after you replaced MAF sensor !
If still have the codes check for vacuum leaks
check intake manifold gasket

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Thursday, June 3rd, 2010 AT 10:18 PM

BIGBLUEFISH

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4 POSTS

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.

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Friday, June 4th, 2010 AT 10:05 PM

BMRFIXIT

MECHANIC
19,053 POSTS

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