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Flash PCM with new software better MPG?

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Old Jan 10, 2009
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Flash PCM with new software better MPG?
Searching around on ebay came across this 2004 ford Ranger.

Guy says
"I recently had the PCM (computer) flashed and updated at Ford on a WDS with the newest program for better gas mileage."
Is that even possible if so why don't they talk about it to encourage people to do it.

eBay link
2004 Ford Ranger
 
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Old Jan 15, 2009
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Thats a very good question. If you find its possible let me know! I changed plug wires to taylor thunder sport 8.2 mm and that adds lots of power. Suprising i know but also good for gas.
 
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Old Jan 15, 2009
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I've heard of it, but never went to a dealer to ask.
 
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Old Jan 15, 2009
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Havent heard of it, worth a try
 
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Old Jan 15, 2009
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Ask Toreador4x4, he should know
 
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Old Jan 16, 2009
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The people who know haven't responded
 
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Old Jan 16, 2009
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Well tell me the out come of it
 
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Old Jan 16, 2009
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I have heard of it before.

They had a recall on some trucks with the 4.0 i think which updated it to a new version. That was around 04 models.
 
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Old Jan 17, 2009
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Are you talking about the TSB recall when they set the calibration code lower in the tranny?
 
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Old Jan 17, 2009
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the tsb isnt for mpg it is for transmission bucking. it applies to the 5r55 trans from like 04+ i think
 
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Old Jan 17, 2009
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Was about to say that Justin lol
 
Last edited by Ford04Ranger4.0; Jan 17, 2009 at 11:37 PM.
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