6.4 no power at accel at times

jbarnett31 · August 13, 2008

i have an 08 f-250 that at times from accel will blow black smoke and have no power, will clear up and be fine. The thing is it only does it once in awhile. My service manager verified it after driving about 90 miles i have no verified yet. I saw on fords diesel message boards of a concern a lot like this that ford has a reprograme for this, but they also said it has not fixed their problem yet. Another tech said he had a high pressure fuel pump leaking into the crankcase, replaced pump and lines and fixed the problem. I checked my oil level and it was ok and did no smell like fuel. Has anyone here ran into this or have any suggestions.

BrunoWilimek · August 13, 2008

Any aftermarket mods? Any DTC's?

jbarnett31 · August 13, 2008

no add on or dtc's

Shlep · August 13, 2008

Check the MAP PID KOEO and again running and see what it is, I had one similar to this in the spring.... let me know what you find.

BrunoWilimek · August 14, 2008

Could it be going into normal regeneration? Check manual regarding normal operating characteristics for regen. There was also a posting on protech about a possible faulty(cracked) DPF, but I would suspect this to be causing a continuous concern, rather than an intermittent one.