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Old 11-13-2012, 07:01 AM
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rough runnins!

I've got a 2006 f-350 with head studs delete kit and more. I recently had installed the loony wild. But after running it for about two weeks my truck has a miss. I don't think it has anything to do with the tune. I've checked the ficm and it was at 47.5 running and i checked the injectors and they past the test.i thought maybe fuel related so i replaced the fuel filters and added stabilizer any suggestions?
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Old 11-14-2012, 01:54 AM
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Do you know what fuel pressure you are running at? Have you upgraded your fuel spring yet? Do you have the ability to monitor the FICM voltage while you are driving?
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Old 11-14-2012, 04:03 AM
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No no and no lol right now we think it maybe a clogged injection. So i put in two quarts of hot shot secret. I work for the next two days straight so i won't be able to do much until Friday. Now what spring are you talking about?
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Old 11-14-2012, 03:50 PM
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I am speaking of the Ford blue fuel pressure spring. I would think that if the truck had been studded and deleted it would have been done too but without being able to monitor fuel pressure it is impossible to say for sure.
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Old 11-15-2012, 06:14 PM
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Do the injectors miss when slowing down(downshifting) and at idle....or all the time??


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Old 11-15-2012, 06:25 PM
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All the time. I am running hot shot secret right now. Butif this don't work Im going to try revx.
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Old 11-16-2012, 05:59 AM
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I drove the truck this morning and it seems its getting worse. It has a miss in it while driving it. It also has the miss while in cruise control.
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Old 11-16-2012, 07:28 AM
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It really sounds like injector or FICM based in my limited experience. You could have a failing fuel pump as well.
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Old 11-16-2012, 08:35 AM
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We are fixing to hook it up to the ford tool and test the ficm again. Only this time were going to drive it. Last time we checked it in the off position and at idle.
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Old 11-16-2012, 08:41 AM
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also do an injector buzz test while youve got the scanner hooked up. See if the injectors will show any miss on the scanner.....if the injector is bad (more than likely spool valves) it'll show a -(number) i.e. -18
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