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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

engine stumbling

Old Jul 29, 2012 | 11:08 AM
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I have an 03 F250, 6.0. Engine stumbles while under a load. Seems like overdrive only. Other than that, runs greats. According to PCM the engine and transmission runs greats, no codes. This has been going on for over a year, continually getting worse. If anyone else has this problem, PLEASE HELP!

Just changed the filter and I change the oil every 3000 miles. I use top of the line injector cleaner at least ever 8 or 10 tanks. Have already replaced crank sensor, EGR valve, which is the only codes that have ever come up in the two years that I have been driving this truck. This problem of cutting out has been going on for over a year. No one can seem to figure it out!
 

Last edited by Maxium4x4; Jul 29, 2012 at 06:08 PM. Reason: merged (Max)
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Old Jul 29, 2012 | 06:12 PM
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Under excelleration, stumbles, check EGR. Sounds like the unison ring could be sticking, what is the boost doing?
 
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