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Message: [QUOTE="Tim @ P.I.S., post: 1085808, member: 744"] Could be injector nozzle. Also slightly possible when installed if an injector is not seated all the way down and a proper seal is not made the bottom o ring (Orange) will hold off combustion heat for a period of time. I have seen this last anywhere from 300-1000 miles. But eventually the heat will burn that o ring and fuel pressure will overcome its ability to seal and pump straight #2 by the copper washer and into the cylinder. Both will show the same symptoms. Honestly I have have had this happen many more times than a broken nozzle. I can count on one hand the # of broken nozzles since 2005 we have had to replace that we sent out. Pull the injectors and see if one has a burnt black o ring where it used to be orange. Good luck and if we can help let us know. [/QUOTE]

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