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| 1997 to 2003 F-150 4.2L, 4.6L, and 5.4L equipped F-150s. |
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#1
Mon, April 19th, 2010, 05:44 PM
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i would see if the truck does this in all instances meaning...
coasting down hill letting off gng up hill down shifting on flat ground ...and maybe engine load?, my truck shutters a bit w the canned tunes but rarely, i dont think its nothin to worry abt. id email or call bill to see what he says. peace
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1999 f150 4x4 - Flowmaster 40 series exhaust - 33" BFG M/T km2's - PHP Gryphon Programmer - RotorPros Slotted rotors - Mag-Hytec Diff Cvr Let's go Wheelin!!! 
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#2
Mon, April 19th, 2010, 06:18 PM
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As long as it doesn't happen when your driving with it programmed back to stock it is a tuning issue. All you have to do is tell Bill and he can fix it up for you.
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#3
Thu, April 29th, 2010, 10:20 AM
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Well, in the spirit of being thorough, i recently ran my tank dry and filled up with 93 octane. I uploaded the new custom 93 tune, and the shifting situation i had with the 87 octane has vanished..plus the 93 octane is even more fun to drive (which i didn't think was possible) than the 87 octane...
love these new tunes!! Bill rocks! 
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#4
Thu, April 29th, 2010, 11:03 AM
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That's strange?
Does it in one tune and not the other? I'll post it in Bill's area just to make him aware of it. Peace! 
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SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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