Question about 2003 Ford F350 Super Duty DRW SuperCab

2 Answers

F350 V10 starts but falters and dies

Fuel pump. fuel filter, idle air motor have all been replaced. No change. Code puller shows no codes. It restarts easily.

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  • manningb_1 Feb 14, 2009

    thanks for the advice, We sent the truck to the ford shop,they hooked up the computers, found nothing. Let it run long enough to burn up nearly 1/2 tank of gas. Unplugged the MAF sensor and plugged ot back in and they said it quit dieing. I brought it home yesterday, it did not die but it still falters. Especially under a load. We did not replace MAf sensor as we have replaced $500 worth of parts that has not fixed the problem..... any more advice?

  • Anonymous Mar 20, 2014

    touareg v10

  • Anonymous Mar 27, 2014

    starts, but wont idle on an incline

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You also might want to check the fuel relay, see if it's been burnt out.

If the truck is still having issues, you might wish to look at the TPS (throttle position sensor). If it's sitting at too low of a position (broken spring usually), it could be killing the truck.

Posted on Jan 13, 2009

  • Jonathan Wolf Feb 14, 2009

    What exactly have you replaced so far?

    If they pulled the MAF and it stopped for a short period of time, it might be the wiring for it.

    My next reccomendation is to try tracing the MAF wiring, see if there's any crimps, kinks, or burns on it, and do the same for the ECU. (I know it's a royal pain, but a lot of times, a charred wire can cause a LOT of grief)

    The faltering under load sounds like it could be one of the following:

    Fuel Pump
    Fuel Regulator
    Fuel Relay
    MAF
    O2 Sensor
    Spark Plug
    TPS
    Clogged Injector/Failed Injector

    Have you run any cleaners through the fuel system since you got the truck? If not, I recommend SeaFoam, it's what I use.


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Have put a new fuel regulator on this truck if you done everything else try that

Posted on Jan 11, 2009

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