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Old 11-14-2012, 04:35 PM
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Rough running/ rough idle / whiteish smoke / p0272

2005 F350 kr 4x4 6.0 auto.

Started out as a rough spot while cold. Then was a rough spot under load every now and then. then got to be every incline or hills ran rough for a minute. Thought it was tranny. Today seemed like it was getting better. Then (2hrs from home of course) this afternoon it started running rough. jerking and jumping. Thought maybe it was trash in tank due to fuel being low. Filled up and put in diesel klean. noticed at stop idle was real rough. No DTC's up to this point. Pulled back onto interstate and it was running real bad at this point. Pulled into ford dealership. checked codes again P0272. Too late for ford to look at it and was still an hr home. So now home and trying to figure it out.

FICM voltage is 47.5-49.0 with a usual of 49.
no fluid loss (coolant or oil)
7-9 deltas on ECT EOT


Any ideas guys? where should I begin my quest. Supposed to be pulling to Tulsa friday and really need this thing back on the road.
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Old 11-14-2012, 04:44 PM
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Can the Ford house test the FICM off the truck?
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Old 11-14-2012, 06:26 PM
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Can't find a P0272 in my chart but I think it is dealing with your ficm so i'm in agree with JHENSON if you got a monitor check it out and there is a do it yourself repair on them probally came loose


P0270 C* O R Cylinder #4 Injector Circuit Low FICM detected a short in an injector circuit to ground. Injector circuit short to ground, defective coil.
P0271 C O R Cylinder #4 Injector Circuit High FICM detected an open injector circuit. Injector circuit open, defective coil.
P0273 C* O R Cylinder #5 Injector Circuit Low FICM detected a short in an injector circuit to ground. Injector circuit short to ground, defective coil.
P0274 C O R Cylinder #5 Injector Circuit High FICM detected an open injector circuit. Injector circuit open, defective coil.
P0276 C* O R Cylinder #6 Injector Circuit Low FICM detected a short in an injector circuit to ground. Injector circuit short to ground, defective coil.
P0277 C O R Cylinder #6 Injector Circuit High FICM detected an open injector circuit. Injector circuit open, defective coil.
P0279 C* O R Cylinder #7 Injector Circuit Low FICM detected a short in an injector circuit to ground. Injector circuit short to ground, defective coil
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Old 11-14-2012, 06:31 PM
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oops take it back look at the #4 cylinder i think thats the contribution code on that one.
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Old 11-14-2012, 06:45 PM
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#4 contribution/balance, is there excessive smoke?

Sent from my phone that somebody didn't help me get.
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Old 11-14-2012, 06:50 PM
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Quote:
Originally Posted by southend View Post
#4 contribution/balance, is there excessive smoke?

Sent from my phone that somebody didn't help me get.
Ok, excessive smoke in the title. I would suspect a cracked injector tip, with just that one code.

Sent from my phone that somebody didn't help me get.
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Old 11-14-2012, 07:20 PM
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There is smoke, More than usual but not as much as when a egr cooler gives up the ghost.
Would a damaged injector not throw a injector code? and yes that is the only code nothing else. thanks for the responses too.
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Old 11-14-2012, 07:45 PM
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Quote:
Originally Posted by jhenson View Post
There is smoke, More than usual but not as much as when a egr cooler gives up the ghost.
Would a damaged injector not throw a injector code? and yes that is the only code nothing else. thanks for the responses too.
It is throwing an injector code, with excessive smoke, and without an electrical fault code, and excessive smoke, I would suspect a cracked or leaking tip. That would be a damaged injector.

Sent from my phone that somebody didn't help me get.
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Old 11-30-2012, 07:44 PM
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New injector installed. fired back up alot easier than i would have expected. How long does it usually take for it to smooth back out?

I know im being impatient and worried that something else is wrong.
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Old 12-01-2012, 04:52 AM
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Quote:
Originally Posted by jhenson View Post
New injector installed. fired back up alot easier than i would have expected. How long does it usually take for it to smooth back out?

I know im being impatient and worried that something else is wrong.
Mine smoothed out after a decent run up to temp.

Sent from my phone that somebody didn't help me get.
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