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Old 01-31-2011, 10:23 AM
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HELP, mpg's suck

I have noticed a loss of fuel mileage on my 2004 6.0. Just recovered from a HG issue where we replaced the head gaskets, installed studs, EGR delete kit, new STC fittings and the FICM module- also new heads. We flashed the FICM with the latest and greatest from Ford. Around town the truck gets 8.8 mpg's. Is there anything anyone here can think of that would be causing this. Oh and by the way, truck has 35x12.50 AT's.
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Old 02-12-2011, 07:19 AM
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Anybody got any ideas?
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Old 02-12-2011, 07:26 AM
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Welcome to being a ford owner..horrible fuel economy at it's best. I get around 11 to 12 all the time..it's pretty pathetic
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Old 02-12-2011, 07:43 AM
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Since you had the FICM flashed, I would suggest you get it flashed back to an older version. The newest version removes the IH strategy which is known to kill FICM's but MANY people have reported it killing their fuel mileage.

One option for you to consider if PHP (Power Hungry Performance). They can roll your strategy back to the best and safest for fuel mileage if you want. They have two options. One you can send your FICM to them to have it done (truck will be down until you get it back) or two you can get on the waiting list for the remote programmer which they will ship to you, and you can reprogram the FICM yourself.

Just be aware, PHP does ALOT of business and they are relatively small so it may take a little bit of time, but they will take care of you.
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Old 02-12-2011, 08:01 AM
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Yup the latest and greatest falls way short in one of those claims. All you can do is get your FICM reprogrammed.
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Old 02-12-2011, 01:00 PM
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Quote:
Originally Posted by roary View Post
One option for you to consider if PHP (Power Hungry Performance). They can roll your strategy back to the best and safest for fuel mileage if you want. They have two options. One you can send your FICM to them to have it done (truck will be down until you get it back) or two you can get on the waiting list for the remote programmer which they will ship to you, and you can reprogram the FICM yourself.

Just be aware, PHP does ALOT of business and they are relatively small so it may take a little bit of time, but they will take care of you.
roary (or anyone else who knows for that matter),

Could you clarify for me. Does PHP "roll back" strategies, AND/OR do they have their own proprietary strategies for the FICM? I was under the impression they had their own strategies.

Thanks and regards.
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Old 02-12-2011, 06:11 PM
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I do know that they can go back to any strategy on the ECM/TCM/FICM but I'm not sure if they have their own in house strategy or not. You might have better luck if you register on their forum and ask that way.
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Old 02-15-2011, 02:45 PM
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Thanks guys, PHP is only about two and a half hours from here. I'm also looking at the SCT X3 Xcalibrator Tuner. Would this help remedy the problem or should i still have the FICM flashed back to an earlier tune. Is the tuner worth the money?

below is the link for the tuner

SCT X3 XCALIBRATOR 3 XCAL3 SF3 FORD F250 F350 DIESEL - eBay (item 270611035203 end time Feb-16-11 11:10:18 PST)
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Old 02-15-2011, 03:20 PM
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The SCT X3 will do nothing for fuel economy..not on mine atleast..we got screwed with the 6.0motor..poor poor mpg
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Old 02-15-2011, 03:45 PM
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tell me about it. How much did your exhaust help?
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