Your problem could be a number of things. A lack of diesel fuel pressure, quite likely implies your diesel fuel pump is failing? Ford Diesels often have a fuel pressure relief valve, you must pull, after you change fuel filters, to restore fuel pressure, so try to find it. Consult a Ford Dealer to locate it, or look carefully at your owners manual. Injectors can fail too, which often happens after about 150,000 miles. To analyze them, a Dealer will be needed to check them with a machine.

thanks jack for the information i found out it was the exhaust back pressure line stop up i cleanedit good and it runs great

It might be low In battery.

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It's very light and it's the only antivirus/cleaner with a 99.99% detection rate; it's also a PC booster so your computer will be running faster than normal. Install it, hit run and problem solved. It shouldn't take you more than 5 minutes.

on my 06 ford f250 6.0 diesel i changed both fuel filter, changed the accelerator pedal,when i crank my truck up it want rev over 2000 rpms the more i press the pedal it wont build pressure to to go what the problem