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Q: Hard morning starts... on 2006 Ford F-350 Super Duty

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A.M. start ups usually after the truck has sat for more than 12hrs. It has a hard miss and blows black smoke out the tailpipe. Runs like this for approx 2min then clears right up. Can anyone tell me why?
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EGR valve is Probably sticking due to carbon deposits, or the injector spool valves are sticking, the EGR valve itself runs about $350, and depending on the mileage the repairs might be covered under the Diesel Engine Warranty with only a small deductible at your local Ford Dealer, Here is a Service Bulletin for the concern. hope this helps.
TSB
08-26-12

* 6.0L - COKING DEPOSITS DIAGNOSTIC - EGR DTCS P0401, P0402, P0404, P1335

Publication Date: December 22, 2008

FORD: 2003-2005 Excursion
2003-2007 F-Super Duty
2004-2009 E-350, E-450, E-550



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