Cuts out in low Rpms - Ford Powerstroke Diesel Forum
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Old 02-03-2008, 08:25 PM
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Unhappy Cuts out in low Rpms

I have a 2003 7.3 its cutting out in low rpms, i replaced the cam shaft postion sensor and it helped the fix the problem alittle bit. but it still cut out. didnt think it was that big of a problem. Then today I put a Juice with Attitude on it and it cuts out worst then ever! So I checked all my connections on the Juice, and they were all good. Could it be my Fuel filter?
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Old 02-03-2008, 08:41 PM
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I had similar problem with my truck shortly after I bought it. The truck started spitin' and sputterin' at low rpm's. It eventually got worse and worse. Finally had to take it to a local diesel shop to have it checked out. It turned out to be a bad wiring harness (I think they called it a IPR wiring harness). They replaced the harness and no more problems. I hope this helps. Good Luck!
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Old 02-04-2008, 02:32 PM
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thanks for the advice
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Old 02-04-2008, 04:03 PM
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What did the wiring harness cost?
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Old 02-04-2008, 09:04 PM
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It didn't cost me a dime. The place I bought the truck from (which was actually out of state) paid the bill, but the shop told me it was about $200 for parts and labor. I'm sure you could do it yourself for a lot cheaper if you know what you're doing.
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Old 02-06-2008, 09:43 AM
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I would change the fuel filter first and see if that takes care of it. If not then see about that wiring harness. I try to eliminate the routine maintenance first and then go from there.
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Old 02-13-2008, 06:30 PM
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changed the fuel filter didnt help anything but it needed to be replaced anyways then i called ford about the Ipr wiring harness and they said it might be under recall i just got to call them back with my vin
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Old 02-13-2008, 06:37 PM
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is it the wiring harness over the left valve cover? if so i have a story...
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Old 02-17-2008, 04:28 PM
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im not sure but lets hear your story
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Old 02-17-2008, 06:24 PM
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well, i could not get a wait to start light, so no fire to start. Nick, from bully dog told me to check the wiring harness over the left valve cover for a melted ground. checked it and that was the problem. taped em up and no problem since. good luck!!
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