Way is my Ford F-250 diesel not getting fuel to injectors?

Answer 1

Assuming you have fuel in the tank and your both your fuel filters are reasonably clean, there are two main reasons: Either your Fuel Injector Control Module (FICM) is bad or your high pressure oil pump is bad.

To check the FICM: The FICM is on top of the engine, underneath the firewall, right in front of the steering wheel. On the top of the FICM, there is an oval plate held in by two T-20 torx screws. Remove this plate and you will see four screws underneath, and check the voltage between the screw head closest to the driver's side (be careful to just touch the screw) and any good ground. You should get 48-49 volts. If it's not more than 45 volts, your FICM is bad.

A new one is over $500 from Ford and you'll need to get them to reprogram it for another $300 or so. The better way is to send it off to one of the guys on eBay that will rebuild it for $250 or so and mail it back to you with a one year guarantee. Since it came from your vehicle, it's already programmed for your peripherals. That way you don't have to shell out the extra $300 for Ford to program it to match it back to your vehicle.

The other major concern is that the high pressure oil pump (located in the top center of your engine) has gone bad. If it has, it's either blown the D-shaped O-ring in the back or just completely died an untimely death at about 175K miles. The 6.0 uses the high pressure oil from this pump to open the fuel rails. It's supposed to generated pressures between 900- 3,000 PSI. Without those pressures, the fuel rails don't open and you get no fuel to the injectors. If it is this pump that's bad, get ready to tear the top half of your engine off and install a new one. If you have it done, you're looking at between $1,700 - $3,500 depending on your mechanic.

~ Seán