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1997 to 2009 Expedition and Navigator
4.6L and 5.4L (2V and 3V) equipped Expeditions and Navigators.

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  #1  
Old Wed, July 4th, 2012, 07:13 PM
98xlt 98xlt is offline
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Did you figure out why your hwy mileage was bad a few months ago? DPFE or what? I am seeing my mileage go down on the hwy and up in town since early this year, don't know why.
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Old Mon, August 13th, 2012, 12:55 AM
demontang demontang is offline
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Yea it was vac leaks and the dpfe. I'm up 2 mpg in town and haven't ran the highway much but it looks like I'm at 16-17 highway.
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