Thread: FICM reprogrammed...worse fuel economy?
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Old Thu, June 30th, 2011, 06:01 PM
BlkSC BlkSC is offline
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Default FICM reprogrammed...worse fuel economy?
I bought my 2003 F250 CCSB 4X4 last October and around December I got a ECM rollback and remote FICM reprogramming and since I've can't seem to get above 15.4 MPG. Driving the truck back from Iowa when I bought it I got close to 17 MPG and now I can't even break 15.5 MPG, even on straight highway. Anybody else have this happen?
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