Engine has a miss to it - Ford Powerstroke Diesel Forum
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Old 11-02-2009, 04:45 AM
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Engine has a miss to it

Lately when ever my truck has been sitting for a extended period like over night or at work it will crank and run fine but when you get to about half throtle it starts to missing almost like a rev limiter is kicking in. After its warmed up(10min) it runs like a champ? If I had a bad injector wouldnt it do it all the time? Any ideas???
No check engine lights are on either
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Old 11-02-2009, 05:04 AM
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Sounds like my truck. And yes I had Ford re-flash it. If anything it has gotten worse and takes longer to warm up since the re-flash. I should have left well enough alone.......
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Old 11-02-2009, 05:13 AM
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so what your saying is just deal with it? awesome
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Old 11-02-2009, 05:20 AM
wriott
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the best thing to do is have a buzz and cyl cont tests done... that will tell you what your problem is
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Old 11-02-2009, 04:59 PM
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missing

yeah my truck is doing the same thing... and just so happens that i have broken 3 rocker arms and thats what is sounds like. but also even at a idle. doesnt idle really rough right now but when i wake up in the morning and its cold it idles rough a little and works its self out...
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Old 11-02-2009, 06:00 PM
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did you find out the cause of the broken rockers??
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Old 11-02-2009, 06:02 PM
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the way mine idles when its cold reminds me of a SB chevy with a huge ace cam in it.. I lops pretty good for about 3 seconds and then its running like a top -the miss at RPM
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Old 11-03-2009, 12:42 AM
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Check each injector plug in wires for a loose one/ not fully seating. This can cause an intermittant miss.
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