Question about 2001 Ford F150 Styleside SuperCrew

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5.4 vortec will not start no codes show up changed relays fuel pump will not kick in then later it will start at times feels like a plug missing fuel pump does work and has the correct pressure this problem is intermitent

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  • dan6143 Sep 27, 2009

    Engine does crank will not fire had it checked out last time it did this they could not find problem, they said if it does this again they will come hook up computer so see if it shows a code they will come Monday they are great mechanics who I trust, question could it be the PCM at times I would be driving it would all of a sudden feel like a plug misfiring or could it be the pump acting up trying to avoid extra expence seems like a trouble shooting problem am hoping the computer will kick a code seems like no fuel being injected into engine on one test the computer said injection coil problem but it would not say which one any input would be great. When the truck runs smooth as hell until it starts to miss and run rough.



    Dan

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Based on my experience with this truck with the 5.5 L at the Ford dealer this problem is a sticking electric fuel pump, if it was another problem you would have a trouble code, replace the fuel pump, check the connectior to pump as well for burning and replace the fuel filter.

Posted on Sep 28, 2009

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Could possibly be a camshaft sensor or crankshaft sensor. If the vehicle does not register that the vehicle is on number one cylinder it will not crank. This is usually read by the camshaft sensor.

Posted on Sep 27, 2009

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