Question about 2004 Ford F150

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Engine surges then stalls after a re=start

2003 Ford F150, 4.6 L "Triton" engine....starts and runs great when cold, but after driving a few miles and it is shut off, will not start again unless you tap the accelerator pedal to keep the RPMs up. OBD II isnt storing a code...I suspect IAC or TPS. Which one? OBDII doesnt indicate either are bad. Please help!

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  • dakota_da40 Jul 16, 2009

    Hello, Fuel filter was replaced, so I'll start with the IAC...but why wouldn't the OBD II pick up on a failing sensor? Have been looking at mechanical things that could be wrong, and havent found any, since the OBD II didnt store a code.

  • Jimmy Nicholson
    Jimmy Nicholson Dec 07, 2013

    theft light flashes fast

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Check the variable timing sprockes on the camshafts, they come with wimpy rivets to hold them if they break the car runs like it have bad spark plugs of timing is wrong.

Posted on Jul 16, 2009

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Could be both sensors, Most likely start with the iac motor. Then replace the fuel filters.
Could be the fuel pump starting to go.

Posted on Jul 16, 2009

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