loss of power - Ford Powerstroke Diesel Forum
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Old 07-05-2014, 07:28 AM
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loss of power

i have a 2004 f250 6.0l pickup. it seems to be getting harder to start, but when cold it has no power at all. it will rev up but wont shift. after it warms up it will take off and run good until at 60-70mph i try to cruise and it will jerk,buck,feel like the motor fell out. i am at the end of my rope. i have a bully dog tuner on it. i had the injectors rebuilt ,changed the filters and fluids,egr delete, oil cooler, ficm, and the main computer{dont remember the exact name for it}. i have put a ton of money into it with the same results... no power.. PLEASE HELP.
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Old 07-14-2014, 01:30 PM
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Did you get any help with your issue?

I would pull that tuner off of it and return it to stock. Then take a scanner and see if you can retrieve any codes.
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Old 07-18-2014, 06:54 AM
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no help yet, but i took off the tuner and codes are p0299 turbo under boost & p0677 cyl. 7 glow plug circuit.

Last edited by frazier; 07-21-2014 at 03:15 AM. Reason: found dts
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