Question about 2002 Ford F250 Super Duty SuperCab

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2002 f250 v10 engine quits after warm up at idle only

Engine quits after warm up at idle only when driving runs fine but dies when coming to stop unless appling throttle has one code po720

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  • baddlybent Mar 09, 2009

    i did replace oss problem still exsists the od lite blinks on shift lever before engine dies

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Hey...had an \'01 Grand Prix,gave me such a hard time,would b driving n it would just shut off! Ended up fixing it by replacing the "fuel pressure regulator"my old one didn\'t leak,that we could see anyway. Tried O2 Sensor MAF Sensor,checked pressure in fuel pump,it was good. Was getting ready to buy the computer n my mechanic says lets try this. And it was the Fuel Pressure Regulator...thanks Jake(my mechanic)

Posted on Aug 21, 2013

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DTC = P0720
footnote b = MIL (malfunction indicator light) comes on after 2nd occurance
footnote c = tranny control indicator light (TCIL) flashes
circuit = OSS = output shaft speed sensor in the tranny (not the variable speed sensor (VSS) in the diff).
condition = OSS sensor circuit malfunction
probable causes = Short/open circuit, sensor, PCM

My guess? Replacing the OSS will take care of it. 2002 f250 v10  engine quits after warm up at idle  - smile.gif I hope you don't have a faulty PCM. frown.gif

Posted on Mar 09, 2009

  • Mike Deemer-White
    Mike Deemer-White Mar 09, 2009

    The only other thing I can think of is the following sensors should be checked



    TSS - Turbine Shaft Speed - Input shaft - Top front of tranny

    OSS - Output Shaft Speed - near tail housing (Already replaced)

    VSS - Vehicle Speed Sensor - Rear pumpkin

    If neither of these are the cause, you might have a PCM problem.





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