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84 F350 fuel problem

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Old Jul 1, 2000 | 09:53 AM
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84 F350 fuel problem

My 84 F350 will not continue to run after about 5 seconds after start up. Should the intank fuel pumps run with the key in the start position?
I have replaced 1 fuel pump and check the other and they both run fine. this problem came on all of a sudden. I blew out the fuel lines and changed the fuel filter. I get fuel to the carb only when i turn the key into the start position and the motor turnes over. when the key returned to the run position the fuel flow stops.
Do i have a electrical problem. If si how do I trobleshoot it?
Can someone plese advise me.
 
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Old Jul 1, 2000 | 11:49 AM
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84 F350 fuel problem

 
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