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I have an 04 Excursion with a 6.0. This motor has sure been an adventure :crazy:

The most recent part of the adventure is the replacement of the ICM at 140,000 miles. Since the new ICM has been in place (about a week now) the truck starts almost normally, but something isn't quite right. It also acts strange when accelerating from zero to about 15 mph. It's as if it's running on only 7 cylinders. There also seems to be a power delivery issue. All of this is subtle, but it's as if I'm now driving a different truck; one that doesn't run quite right.

Does the ICM need to be "sync'd" with the main computer, or anything like that? Just fishing for a solution.
 

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ive swaped ficm's without any issues as long as the years are close you should be fine
i had a simular problem with mine and just changed the IPR on sat and the truck is running the best it has in over a year it was surging lightly on idle after letting off fuel and was also surging really noticablely at the start of excelartion from a dead stop
hope this helps
 

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All 2003 to 2007 model year F-Series (and E-Series) trucks equipped with the 6.0L diesel use the exact same FICM (same part number from Ford). When replacing with a new FICM from the dealer, it has to be programmed using Ford's IDS scan tool.
 
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