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I recently purchased a 05 f350 v8 6.0. Prior to purchase I had a mechanic do some diagnostics and here are the results. My question would be suggestions on what needs to be done, cylinder 6 injector replaced, FICM replaced??? Thanks
Are there any driveability symptoms or is it just that the codes keep setting?
The focus needs to be on the P0611 as any problems with the FICM will cause injector related codes to set.
I had a recent experience with a 2006 6.0 in which I found the connectors for the FICM weren’t properly seated. It may not be the same issue for you but here’s the details of the diagnosis and repair -
No real issues that I notice while driving; mpg about 13.0 is that accurate. Thanks for the info
From what I’ve seen/read on boards and other sources, 13 MPG is about average for these trucks, but some report 15-18.
Problem is, there’s far too many factors that affect MPG; IMO, personal driving habits are at the top of the list - so the better question is whether or not 13 MPG is accurate for you.
If you haven’t been driving it enough to know, reset the MPG data in the dash and see how it does over 4-5 fill ups.
Without any driveability concerns (rough idle, bucking/hesitation/missing, etc) it’s hard to say what the cause of the codes is, but I would lean toward electrical connections as a primary suspect.
If you do notice any concerns, take note of the conditions at the moment (idle vs acceleration vs highway cruising, engine speed/temp, AC on/off, gear if manual transmission) and see if you can reproduce the concern.
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