Does anybody know how to fix this problem

Asked by Jerry Nov 13, 2020 at 03:32 PM about the 2011 Ford F-150 FX4 SuperCrew 4WD

Question type: Maintenance & Repair

2011 f150 fx4 3.5L ecoobost 155,678 miles
truck ran shut it off to change the oil. Start
up the truck idles then gets ruff and dies and
won't restart. Fuel pump works, high
pressure fuel pump didn't ( replaced ) still
cranks but won't start, checked fuel pump
driver module ( replaced ) still cranks and no
start, checked #27 fuse and it is good and
checked #78 and it is good, fuel pump relay
was bad, ( replaced ) and still nothing.
Anybody else run into this bad of a
problem???

3 Answers
3,240

Justin answered 3 years ago

You said it idled rough....rough like running lean or like running rich? Try cleaning idle air control valve and see what that does

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157,535

Bob answered 3 years ago

I seriously doubt that the high pressure fuel pump and the fuel pump relay were bad at the same time. Also the high pressure pumps almost never fail on those. You need to stop throwing parts at it and take it to a qualified shop, preferably the dealership.

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