Originally Posted by SafetyGeorge

My 2005 F250 6.0L had those same symptoms of rough running and no power right after a cold/cool start. A few minutes would warm it up and run fine. Dealer diagnosed EGR cooler leakage clogging up the EGR valve. Combined with low voltage on the FICM. I am out of pocket for nearly $3400 in repairs but it runs right now.