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2003 to 2007 6.0L Power Stroke Diesel 6.0L Power Stroke Diesel equipped Super Duty and Excursion

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  #11  
Old Tue, June 8th, 2010, 08:59 PM
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The first 03's had pilot injection, which made them idle quietly....similar in noise level to a 6.4 but not quite. There was alot of injector issues with it so ford flashed it away.
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  #12  
Old Tue, June 8th, 2010, 09:06 PM
MJ365 MJ365 is offline
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My dad's 03 was as quiet as the newer diesel trucks before it got reflashed when he brought it in for one of those supposed "free" oil changes even though nothing was wrong with it.
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  #13  
Old Thu, June 17th, 2010, 09:26 PM
cartmanea cartmanea is offline
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How does TEC 3 compare with '03 strategies like VXAP1, VXAP0, or is it the same as VXAP0? Does the TEC 3 strategy still use the EBP sensor? I currently have VXAP1, and before I get custom tunes I want to either get the latest flash for the turbo, improved EGR operation, and any trans improvements, or go back to an early strategy for the better mileage and power. 3rd option I guess is to stick with VXAP1 and get FICM tuning.
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  #14  
Old Fri, June 18th, 2010, 03:56 AM
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personaly i would not get the lateset flash..fuel economy and power sucks..ford has really detuned these engines thru the years..if im not mistaken the tec4 is when they started the sweeping vanes on the turbo.actually we are putting my truck back to its origninal strat very soon with the pilot injection to do some testing.
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  #15  
Old Fri, June 18th, 2010, 10:26 AM
cartmanea cartmanea is offline
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How do the TEC3 and TEC4 strategies compare with the VXAP0 and VXAP1 strategies? Are they mixed in there with a different naming convention, or were they earlier than even the VXAP0 strategy?
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  #16  
Old Sat, June 19th, 2010, 01:25 AM
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Had my 06 6.0 put back a few weeks ago when I was in GA. It didn't help my MPG as much as I had hoped it would, but the first time the wife got inside the truck she said it's not as loud as it was. I now love the way my Tow-Haul works, when pulling the 5th wheel. Wish the turbo would spool up faster.
My truck is stock.
Thanks again
Doug
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  #17  
Old Sun, June 20th, 2010, 08:03 AM
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The difference in the strats is just later tuning updates ford came out with tec1 i beleave thru tec7 is just how ford names them i have a tec3 currently all o3 are like the vxap blah blah...i think tec4 is where the sweeping veins at idle started tec1 or zero is where they had pilot injection..until recently the pilot injection would not work with IH heating..bill would have to go into greater detail on this for me.
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  #18  
Old Mon, June 21st, 2010, 11:53 AM
MJ365 MJ365 is offline
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The TEC1,TEC3, and on correspond to Ford part numbers for replacement ECM/TCM units with specific strategy packages on them.TEC3 is printed on the ECM sticker with all the other info.
For example on my 04 the ECM/TCM is a "TBS6" unit that has VXBC9N8 and TQBF0NA strategies and they are crap. The power is way down from what is had new.
The last ones were VXBC7A3 and TQBE0AA before my latest reflash. They're crap too.
I don't know what the original strategies were on it new but it still didn't compare to my dad's 03.
Here's a link to a bunch of different ECM/TCM/FICM hardware part numbers and their 4 digit "control unit catchwords" and you will see how many different packages there are just for 2003. 2003 Ford F-series super duty firmware update database

I would much rather have one of the TEC(X) strategy packages on my 04 truck any day of the week but I don't know how far backwards you can go with a particular ecm. That's another one for Bill to elaborate on I guess.
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  #19  
Old Mon, June 21st, 2010, 06:59 PM
Farmer11 Farmer11 is offline
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Just got mine put back to tec3 i believe today. So far didnt see a huge improvement in power, but i didnt really pay to much attention to it. when i tow later this i should be able to give a lil more info. It does seem to start better, doesnt crank as long as the old one. I had one of the tec 7 flashes, so we'll see if my mileage goes up!
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  #20  
Old Tue, June 22nd, 2010, 05:11 PM
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I'm looking to have my ECM and FICM rolled back. But for some reason I can't ever get through to anyone via the phone. Is it the ECM that gives the poor fuel mileage or is it the FICM or a combo of the two? Why would on roll back the FICM and not the ECM (this was an option offered by Bill via PM on powerstroke.org). I just want my fuel economy back.

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Tony T.
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