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2004 to 2008 F-150 and Mark-LT
4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs.


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  #11  
Old Thu, July 22nd, 2010, 01:55 PM
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Put it back to stock and haul it to a dealer, its still under warranty.
Drive it 50-100 miles to get rid of the p1000 code before taking it in.
BTW
What's your hex code?
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  #12  
Old Mon, August 16th, 2010, 10:27 AM
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Default 08 5.4 Supercrew

I experience the same symptoms in my truck and only on #2 tune. It doesn't do it on tune 1 and 3. Since 2 is for towing, I just decided not to use it unless I'm towing, which isn't too often. And when running on #2, and the truck misses, I usually pull over immediately, turn off the truck and it stops the rough running for another two weeks or so.
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