2005 super duty 6. help!!!!!!! - Ford Powerstroke Diesel Forum
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Old 09-15-2009, 08:57 PM
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Angry 2005 super duty 6. help!!!!!!!

2005 superduty 6.0 powerstroke the truck will shut down and have no fue pressure at the service port, but checking at the out side of the rail pump its like 100psi, and checking on the return side at the pump its like 70 pluspsi, new pump and filters, the truck will run great and then shut down and the fuel pressure drops to zero,even with the fuel pump,its new as well, running when i turn the key there isnt any presure at the fuel test port, then after it sets awhile sometimes i can turn the key and it shoots to 50 plus psi and will start and run, it might idle for hours or it might die after a few minutes, it driving me nuts, can the fuel presure regualtor be screwing up? helphelp anyone have this problem? as long as the fuel presure at the test port is 50 plus it runs great, but like i said it just drops to zero for no reason
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Old 09-16-2009, 02:17 PM
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FICM...Fuel Injection Control Module...that's guess...my truck would do this a while back...hope you still got warranty
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Old 09-16-2009, 07:15 PM
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might want to try the "balloon test" on the fuel lines from the secondary filter. Combustion gasses could be by-passing an o-ring on and inject
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