[artfuldodger]

Just read this post now and yes, this is very common on the 6l diesel. The problem even has a name,"Stiction". look it up on the Ford Forum (Ford Truck Enthusiasts). The injectors receive pressure from engine oil pressure which drives the injector . Recent "green" laws prohibit oil companies from adding certain components that used to eliminate the buildup of impurities that foul the injectors. It takes a while for the varnishes to accumulate enough to cause the injectors to stick when the oil is cold and therefore thicker than when warm. The good news is that there is help. 1. Change to synthetic oil(in the north I use Shell Rotella 5W40) 2. add what is called REV-X (google it)which adds the components that the oil company left out, to clean the varnishes built up in the injectors. REV-X is not cheap but is a less expensive by a long way than replacing the dirty injectors.