Join Date: Jul 2013
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Truck cuts off like you turned off the key
I have looked at tons of posts on stalling but have tested everything I have read about. Need next steps.
2004 F350 6.0. Engine sticker says its a 2006.
Truck will start fine like normal. Run about three minutes then cut off cold. No smoke no sputter no miss nothing. Acts like the key was switched off. Cranks good but won't start. Let it sit an hour or so and it starts up perfect and again stalls after a few minutes.
Tested Fuel pressure 48 psi
Tested FICM 48 volts steady cranking and running
Put pressure gauge in ips port and it measures a rock steady 1000 psi at idle, 300 psi cranking with key off and goes up to 2000 with key on during no start condition. That leads me to believe the IPR is working.
Performed balloon test and don't see any issues with injectors.
Don't see any chaffed wires but hard to see harness in some areas.
The batteries are new, alternator new, Fresh oil and filter, Good fuel filters.
I don't have a way to monitor IPR percent. I only have a code reader truck is showing no codes.
Stumped, Please help a newbie out!