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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

2003 6.0L Diesel Ford F250 Idle Issues

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Old Jun 13, 2017 | 06:32 PM
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JocelynMarquez64's Avatar
JocelynMarquez64
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2003 6.0L Diesel Ford F250 Idle Issues

Hi everyone, I'm new to this thread and whatnot, but I'm having some real issues with my 03 6.0. I'm having some idle surge problems, it starts rough and idles like its got a huge cam in it. It's got the EGR delete, straight piped, bullet proofed, it has the blue spring update, and it's got a sct street tune on it. I've already went through the PITA procedure of replacing the ICP and that's not the culprit. The FICM voltage at KOEO is 12v i think, and the internal is reading at 48v I think. Also, after having all the work done the turbo was loud, obviously. Like a beautiful loud, but now it's just a whisper. It ran like a dream a few days ago, and after it sat a few hours at home while on a beach trip the problems started. It's slightly over on the oil change and I haven't checked the fuel pressure yet. Fluids are fine, besides the oil, the engine temp is fine and the trans temp is fine. I'm stumped though. I can't figure it out. Help?
 
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