Question about 2004 Ford Super Duty F 550

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2004 f550 super duty will not start ,cranks fine,replaced three damaged injectors and seals on all the other injectors,replaced ipc and ipr sensors

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Do you know the reason for the damaged injectors? 1. VERIFY the Inertia Fuel Shutoff (IFS) switch is set (button pushed in). REFER to the Owner Guide for location 2. Check fuel pump pressure, Pressure Specification (KOEO) 5.4L & 6.8L 35-45 psi (240-310 kPa). If you don't have a Fuel Pressure Tester, you can borrow one form an Auto Parts Store like AutoZone, Checkers and others.
Have you messed with the plugs?? It seems that on your type of engine the plugs are very hard to remove and there is an special procedure for that, and if not followed, the plug may break. here is a flow chart on plug removal for your vehicle.
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Posted on Oct 15, 2010


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