I own a 1999 7.3 PStroke. Twisted diesel recently diagnosed a problem pertaining to my fuel delivery/performance upon starting cold crank/long crank problem that was misdiagnosed by other reputable field mechanics dating back to an original problem a little over a year ago.Conscientious techs/mechanics got it right with their diagnosis of the cause and performed the correct repairs. I have 250thousand on this vehicle! Was considering a newer vehicle,but have hope for contineud milage with this truck that has served so well over the years