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Old Oct 18, 2011 | 12:14 PM
  #1  
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barngoddess
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From: southwest MO
fuel pumps

How long should a fuel pump run when the truck is started in a f250 7.3?
 
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Old Oct 18, 2011 | 12:25 PM
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until you turn the motor off.
 
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Old Oct 18, 2011 | 12:37 PM
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From: Payson, AZ
Contiuously after start, but only about 20 seconds with key in on position and no start. There is a FP monitor circuit and the PCM will turn the pump off if it isn't started.
 
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Old Oct 18, 2011 | 12:48 PM
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From: southwest MO
f250

Yes thats what I meant initially with key in but no start, someone told us about 10 seconds but ours runs for about 30 seconds-just racking the brain for solutions to our problem
 
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Old Oct 18, 2011 | 12:52 PM
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mine runs for 20-30-ish seconds, even when cycling the key. Whats your problem?
 
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Old Oct 18, 2011 | 01:11 PM
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f250 7.3

Go under the F250 7.3 forum, I posted the problem there as well as in another spot-(wrong place)-newbie mistake-read all about it, got any ideas let me know
 
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