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Message: [QUOTE="Black 02, post: 1340422, member: 6916"] I want to thank golfer with helping me try to diagnose this problem. It's been frustrating and it's still happening. There is something going on related to temperature of the engine or engine oil. The truck runs great when it's cold. It smokes a little when really cold but clears up and has just a subtle haze when warmed up idling. I drove almost 20 miles today and there was no miss or hitch throughout the RPM band. Very smooth. Then, all of a sudden, like a switch was flipped, the truck started missing/hitching. It's most noticeable at like 1750 RPM. After it started doing it, it got progressively worse as I continued to drive it. I drove another 15 miles and it was even doing it from stoplight to stop light as I'd accelerate easily as it came through the 1250 to 2250 RPM range. I'm gonna keep data logging this thing to see if I can figure it out. I just don't want to damage my new engine, but I have to figure it out. ICP, IPR, UVCH and gasket, and connectors have all been replaced with Ford replacements. Miss occurs with ******** tuning and with Swamp's tuning. It idles smooth when cold, but idles somewhat rough when warm. Almost sounds like it has a cam. I wondering if its: TPS Injectors worn Engine oil.... gonna change this soon. ????? Damn cornbinder!!!!! [/QUOTE]

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