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Old 10-02-2008, 02:57 AM

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Fuel System Ouestion

My friend just picked up an 03 F250. After you turn the truck off there is still a pump or something still running. Does this have to do with the fuel system having pressure put to it. I have a 97 F250 and i know that is injected. He was just curious It is a 6.0

Last edited by jakester99; 10-02-2008 at 04:31 AM.
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Old 10-02-2008, 03:39 AM


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you sure youre not hearing the turbo winding down? His Fuel pump is under the drivers side door. If you stick your head near the inside of the frame rail, you will see it, and you can hear if its still running. If its not that, stick your head under the hood when he pulls up to park it, pop the hood and listen as he shuts it off and see if you can find out where the noise is comming from. If I am thinking right(uh oh! ) nothing shoudl run after the truck is turned off. At least on mine nothing runs afterwards. He didnt put an electric fan on there did he?
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Old 10-02-2008, 05:13 AM


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Is it the injectors clicking? There was a reflash that would make the injectors cycle on shutdown that you could hear outside the truck.
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