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2008 6.4l rough idle & P0305 code
My 08 6.4l F250 is idling rough, especially in gear with foot on brake. Accelerates fine, no stumbling or hesitation and no lack of power I can notice.
I replaced the EGR valve, fuel/oil filters (OEM), oil, etc...Added some diesel Kleen to the fuel and some Rev-X to the oil.
Cleared the previous code (P0300, multiple/random cylinder misfire) and drove it about 40 miles before code set with P0305, Cylinder #5 misfire.
Coolant level hasn't budged and no other symptoms except the rough idle...which gets rougher if I idle more than a minute or so.
2008 Ford F250 6.4l diesel, 150k miles